Home / 170,868.20-256,512.90-107,688.20

Finding the Fourth Proportional to 170,868.20, 256,512.90 and 107,688.20

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Solution

The fourth proportional to 170,868.20, 256,512.90 and 107,688.20 is: 161,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,868.20 : 256,512.90 = 107,688.20 : x
  2. Step 2: Convert to fraction form
    170,868.20/256,512.90 = 107,688.20/x
  3. Step 3: Cross multiply
    170,868.20x = 256,512.90 × 107,688.20
  4. Step 4: Simplify right side
    170,868.20x = 27,623,412,477.78
  5. Step 5: Solve for x
    x = 27,623,412,477.78/170,868.20
  6. Step 6: Final answer
    x = 161,665.03

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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.