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Finding the Fourth Proportional to 115,368, 159,207.84 and 62,376

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Solution

The fourth proportional to 115,368, 159,207.84 and 62,376 is: 86,078.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,368 : 159,207.84 = 62,376 : x
  2. Step 2: Convert to fraction form
    115,368/159,207.84 = 62,376/x
  3. Step 3: Cross multiply
    115,368x = 159,207.84 × 62,376
  4. Step 4: Simplify right side
    115,368x = 9,930,748,227.84
  5. Step 5: Solve for x
    x = 9,930,748,227.84/115,368
  6. Step 6: Final answer
    x = 86,078.88

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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.