Home / 145,127.97-217,689.73-102,256.16

Finding the Fourth Proportional to 145,127.97, 217,689.73 and 102,256.16

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Solution

The fourth proportional to 145,127.97, 217,689.73 and 102,256.16 is: 153,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,127.97 : 217,689.73 = 102,256.16 : x
  2. Step 2: Convert to fraction form
    145,127.97/217,689.73 = 102,256.16/x
  3. Step 3: Cross multiply
    145,127.97x = 217,689.73 × 102,256.16
  4. Step 4: Simplify right side
    145,127.97x = 22,260,114,517.15
  5. Step 5: Solve for x
    x = 22,260,114,517.15/145,127.97
  6. Step 6: Final answer
    x = 153,382.66

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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.