Home / 123,400.82-170,263.85-75,001.91

Finding the Fourth Proportional to 123,400.82, 170,263.85 and 75,001.91

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Solution

The fourth proportional to 123,400.82, 170,263.85 and 75,001.91 is: 103,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,400.82 : 170,263.85 = 75,001.91 : x
  2. Step 2: Convert to fraction form
    123,400.82/170,263.85 = 75,001.91/x
  3. Step 3: Cross multiply
    123,400.82x = 170,263.85 × 75,001.91
  4. Step 4: Simplify right side
    123,400.82x = 12,770,112,727.62
  5. Step 5: Solve for x
    x = 12,770,112,727.62/123,400.82
  6. Step 6: Final answer
    x = 103,484.83

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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.