Home / 131,677.46-181,713.61-71,246.78

Finding the Fourth Proportional to 131,677.46, 181,713.61 and 71,246.78

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Solution

The fourth proportional to 131,677.46, 181,713.61 and 71,246.78 is: 98,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,677.46 : 181,713.61 = 71,246.78 : x
  2. Step 2: Convert to fraction form
    131,677.46/181,713.61 = 71,246.78/x
  3. Step 3: Cross multiply
    131,677.46x = 181,713.61 × 71,246.78
  4. Step 4: Simplify right side
    131,677.46x = 12,946,509,667.09
  5. Step 5: Solve for x
    x = 12,946,509,667.09/131,677.46
  6. Step 6: Final answer
    x = 98,319.86

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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.