Home / 155,371.56-214,280.46-131,290.20

Finding the Fourth Proportional to 155,371.56, 214,280.46 and 131,290.20

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Solution

The fourth proportional to 155,371.56, 214,280.46 and 131,290.20 is: 181,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,371.56 : 214,280.46 = 131,290.20 : x
  2. Step 2: Convert to fraction form
    155,371.56/214,280.46 = 131,290.20/x
  3. Step 3: Cross multiply
    155,371.56x = 214,280.46 × 131,290.20
  4. Step 4: Simplify right side
    155,371.56x = 28,132,924,449.49
  5. Step 5: Solve for x
    x = 28,132,924,449.49/155,371.56
  6. Step 6: Final answer
    x = 181,068.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.