Home / 138,275.18-207,411.61-38,435.08

Finding the Fourth Proportional to 138,275.18, 207,411.61 and 38,435.08

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Solution

The fourth proportional to 138,275.18, 207,411.61 and 38,435.08 is: 57,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,275.18 : 207,411.61 = 38,435.08 : x
  2. Step 2: Convert to fraction form
    138,275.18/207,411.61 = 38,435.08/x
  3. Step 3: Cross multiply
    138,275.18x = 207,411.61 × 38,435.08
  4. Step 4: Simplify right side
    138,275.18x = 7,971,881,823.28
  5. Step 5: Solve for x
    x = 7,971,881,823.28/138,275.18
  6. Step 6: Final answer
    x = 57,652.30

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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.