Home / 138,200.17-207,300.14-38,360.31

Finding the Fourth Proportional to 138,200.17, 207,300.14 and 38,360.31

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Solution

The fourth proportional to 138,200.17, 207,300.14 and 38,360.31 is: 57,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,200.17 : 207,300.14 = 38,360.31 : x
  2. Step 2: Convert to fraction form
    138,200.17/207,300.14 = 38,360.31/x
  3. Step 3: Cross multiply
    138,200.17x = 207,300.14 × 38,360.31
  4. Step 4: Simplify right side
    138,200.17x = 7,952,097,441.64
  5. Step 5: Solve for x
    x = 7,952,097,441.64/138,200.17
  6. Step 6: Final answer
    x = 57,540.43

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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.