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Finding the Fourth Proportional to 112,754.66, 155,566.02 and 65,001.38

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Solution

The fourth proportional to 112,754.66, 155,566.02 and 65,001.38 is: 89,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,754.66 : 155,566.02 = 65,001.38 : x
  2. Step 2: Convert to fraction form
    112,754.66/155,566.02 = 65,001.38/x
  3. Step 3: Cross multiply
    112,754.66x = 155,566.02 × 65,001.38
  4. Step 4: Simplify right side
    112,754.66x = 10,112,005,981.11
  5. Step 5: Solve for x
    x = 10,112,005,981.11/112,754.66
  6. Step 6: Final answer
    x = 89,681.49

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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.