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Finding the Fourth Proportional to 112,062, 154,655.28 and 61,770.72

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Solution

The fourth proportional to 112,062, 154,655.28 and 61,770.72 is: 85,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,062 : 154,655.28 = 61,770.72 : x
  2. Step 2: Convert to fraction form
    112,062/154,655.28 = 61,770.72/x
  3. Step 3: Cross multiply
    112,062x = 154,655.28 × 61,770.72
  4. Step 4: Simplify right side
    112,062x = 9,553,167,997.40
  5. Step 5: Solve for x
    x = 9,553,167,997.40/112,062
  6. Step 6: Final answer
    x = 85,248.95

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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.