Home / 126,331.44-189,433.77-42,061.92

Finding the Fourth Proportional to 126,331.44, 189,433.77 and 42,061.92

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Solution

The fourth proportional to 126,331.44, 189,433.77 and 42,061.92 is: 63,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,331.44 : 189,433.77 = 42,061.92 : x
  2. Step 2: Convert to fraction form
    126,331.44/189,433.77 = 42,061.92/x
  3. Step 3: Cross multiply
    126,331.44x = 189,433.77 × 42,061.92
  4. Step 4: Simplify right side
    126,331.44x = 7,967,948,079.04
  5. Step 5: Solve for x
    x = 7,967,948,079.04/126,331.44
  6. Step 6: Final answer
    x = 63,071.77

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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.