Home / 157,535.60-217,420.20-100,180.52

Finding the Fourth Proportional to 157,535.60, 217,420.20 and 100,180.52

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Solution

The fourth proportional to 157,535.60, 217,420.20 and 100,180.52 is: 138,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,535.60 : 217,420.20 = 100,180.52 : x
  2. Step 2: Convert to fraction form
    157,535.60/217,420.20 = 100,180.52/x
  3. Step 3: Cross multiply
    157,535.60x = 217,420.20 × 100,180.52
  4. Step 4: Simplify right side
    157,535.60x = 21,781,268,694.50
  5. Step 5: Solve for x
    x = 21,781,268,694.50/157,535.60
  6. Step 6: Final answer
    x = 138,262.52

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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.