Home / 138,290.92-207,435.02-63,389.80

Finding the Fourth Proportional to 138,290.92, 207,435.02 and 63,389.80

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Solution

The fourth proportional to 138,290.92, 207,435.02 and 63,389.80 is: 95,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,290.92 : 207,435.02 = 63,389.80 : x
  2. Step 2: Convert to fraction form
    138,290.92/207,435.02 = 63,389.80/x
  3. Step 3: Cross multiply
    138,290.92x = 207,435.02 × 63,389.80
  4. Step 4: Simplify right side
    138,290.92x = 13,149,264,430.80
  5. Step 5: Solve for x
    x = 13,149,264,430.80/138,290.92
  6. Step 6: Final answer
    x = 95,084.08

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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.