Home / 142,932.30-197,233.65-79,269.90

Finding the Fourth Proportional to 142,932.30, 197,233.65 and 79,269.90

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Solution

The fourth proportional to 142,932.30, 197,233.65 and 79,269.90 is: 109,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,932.30 : 197,233.65 = 79,269.90 : x
  2. Step 2: Convert to fraction form
    142,932.30/197,233.65 = 79,269.90/x
  3. Step 3: Cross multiply
    142,932.30x = 197,233.65 × 79,269.90
  4. Step 4: Simplify right side
    142,932.30x = 15,634,691,712.14
  5. Step 5: Solve for x
    x = 15,634,691,712.14/142,932.30
  6. Step 6: Final answer
    x = 109,385.29

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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.