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Finding the Fourth Proportional to 127,757, 176,304.66 and 71,172.02

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Solution

The fourth proportional to 127,757, 176,304.66 and 71,172.02 is: 98,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,757 : 176,304.66 = 71,172.02 : x
  2. Step 2: Convert to fraction form
    127,757/176,304.66 = 71,172.02/x
  3. Step 3: Cross multiply
    127,757x = 176,304.66 × 71,172.02
  4. Step 4: Simplify right side
    127,757x = 12,547,958,787.61
  5. Step 5: Solve for x
    x = 12,547,958,787.61/127,757
  6. Step 6: Final answer
    x = 98,217.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.