Home / 138,528.02-207,798.22-42,458.16

Finding the Fourth Proportional to 138,528.02, 207,798.22 and 42,458.16

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Solution

The fourth proportional to 138,528.02, 207,798.22 and 42,458.16 is: 63,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,528.02 : 207,798.22 = 42,458.16 : x
  2. Step 2: Convert to fraction form
    138,528.02/207,798.22 = 42,458.16/x
  3. Step 3: Cross multiply
    138,528.02x = 207,798.22 × 42,458.16
  4. Step 4: Simplify right side
    138,528.02x = 8,822,730,072.48
  5. Step 5: Solve for x
    x = 8,822,730,072.48/138,528.02
  6. Step 6: Final answer
    x = 63,689.14

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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.