Home / 127,876.59-176,435.07-72,685.14

Finding the Fourth Proportional to 127,876.59, 176,435.07 and 72,685.14

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Solution

The fourth proportional to 127,876.59, 176,435.07 and 72,685.14 is: 100,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,876.59 : 176,435.07 = 72,685.14 : x
  2. Step 2: Convert to fraction form
    127,876.59/176,435.07 = 72,685.14/x
  3. Step 3: Cross multiply
    127,876.59x = 176,435.07 × 72,685.14
  4. Step 4: Simplify right side
    127,876.59x = 12,824,207,763.86
  5. Step 5: Solve for x
    x = 12,824,207,763.86/127,876.59
  6. Step 6: Final answer
    x = 100,285.81

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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.