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Finding the Fourth Proportional to 111,807.70, 167,419.95 and 88,285.30

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Solution

The fourth proportional to 111,807.70, 167,419.95 and 88,285.30 is: 132,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,807.70 : 167,419.95 = 88,285.30 : x
  2. Step 2: Convert to fraction form
    111,807.70/167,419.95 = 88,285.30/x
  3. Step 3: Cross multiply
    111,807.70x = 167,419.95 × 88,285.30
  4. Step 4: Simplify right side
    111,807.70x = 14,780,720,511.74
  5. Step 5: Solve for x
    x = 14,780,720,511.74/111,807.70
  6. Step 6: Final answer
    x = 132,197.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.