Home / 142,864.30-197,187.95-84,770.29

Finding the Fourth Proportional to 142,864.30, 197,187.95 and 84,770.29

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Solution

The fourth proportional to 142,864.30, 197,187.95 and 84,770.29 is: 117,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,864.30 : 197,187.95 = 84,770.29 : x
  2. Step 2: Convert to fraction form
    142,864.30/197,187.95 = 84,770.29/x
  3. Step 3: Cross multiply
    142,864.30x = 197,187.95 × 84,770.29
  4. Step 4: Simplify right side
    142,864.30x = 16,715,678,789.18
  5. Step 5: Solve for x
    x = 16,715,678,789.18/142,864.30
  6. Step 6: Final answer
    x = 117,003.89

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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.