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Finding the Fourth Proportional to 142,760.92, 197,001.82 and 79,094.92

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Solution

The fourth proportional to 142,760.92, 197,001.82 and 79,094.92 is: 109,146.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,760.92 : 197,001.82 = 79,094.92 : x
  2. Step 2: Convert to fraction form
    142,760.92/197,001.82 = 79,094.92/x
  3. Step 3: Cross multiply
    142,760.92x = 197,001.82 × 79,094.92
  4. Step 4: Simplify right side
    142,760.92x = 15,581,843,192.75
  5. Step 5: Solve for x
    x = 15,581,843,192.75/142,760.92
  6. Step 6: Final answer
    x = 109,146.42

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1.5x scale

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.