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Finding the Fourth Proportional to 113,649.68, 156,855.04 and 68,373.42

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Solution

The fourth proportional to 113,649.68, 156,855.04 and 68,373.42 is: 94,366.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,649.68 : 156,855.04 = 68,373.42 : x
  2. Step 2: Convert to fraction form
    113,649.68/156,855.04 = 68,373.42/x
  3. Step 3: Cross multiply
    113,649.68x = 156,855.04 × 68,373.42
  4. Step 4: Simplify right side
    113,649.68x = 10,724,715,529.04
  5. Step 5: Solve for x
    x = 10,724,715,529.04/113,649.68
  6. Step 6: Final answer
    x = 94,366.44

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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.