Home / 171,072,213.80-256,608,320.70-142,350,780.20

Finding the Fourth Proportional to 171,072,213.80, 256,608,320.70 and 142,350,780.20

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Solution

The fourth proportional to 171,072,213.80, 256,608,320.70 and 142,350,780.20 is: 213,526,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,213.80 : 256,608,320.70 = 142,350,780.20 : x
  2. Step 2: Convert to fraction form
    171,072,213.80/256,608,320.70 = 142,350,780.20/x
  3. Step 3: Cross multiply
    171,072,213.80x = 256,608,320.70 × 142,350,780.20
  4. Step 4: Simplify right side
    171,072,213.80x = 36,528,394,657,456,808
  5. Step 5: Solve for x
    x = 36,528,394,657,456,808/171,072,213.80
  6. Step 6: Final answer
    x = 213,526,170.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.