Home / 128,691.16-193,061.02-48,753.04

Finding the Fourth Proportional to 128,691.16, 193,061.02 and 48,753.04

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Solution

The fourth proportional to 128,691.16, 193,061.02 and 48,753.04 is: 73,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,691.16 : 193,061.02 = 48,753.04 : x
  2. Step 2: Convert to fraction form
    128,691.16/193,061.02 = 48,753.04/x
  3. Step 3: Cross multiply
    128,691.16x = 193,061.02 × 48,753.04
  4. Step 4: Simplify right side
    128,691.16x = 9,412,311,630.50
  5. Step 5: Solve for x
    x = 9,412,311,630.50/128,691.16
  6. Step 6: Final answer
    x = 73,138.76

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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.