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Finding the Fourth Proportional to 111,909.70, 167,864.55 and 38,037.70

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Solution

The fourth proportional to 111,909.70, 167,864.55 and 38,037.70 is: 57,056.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,909.70 : 167,864.55 = 38,037.70 : x
  2. Step 2: Convert to fraction form
    111,909.70/167,864.55 = 38,037.70/x
  3. Step 3: Cross multiply
    111,909.70x = 167,864.55 × 38,037.70
  4. Step 4: Simplify right side
    111,909.70x = 6,385,181,393.54
  5. Step 5: Solve for x
    x = 6,385,181,393.54/111,909.70
  6. Step 6: Final answer
    x = 57,056.55

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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.