Home / 127,909.60-176,511.36-71,330.56

Finding the Fourth Proportional to 127,909.60, 176,511.36 and 71,330.56

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Solution

The fourth proportional to 127,909.60, 176,511.36 and 71,330.56 is: 98,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,909.60 : 176,511.36 = 71,330.56 : x
  2. Step 2: Convert to fraction form
    127,909.60/176,511.36 = 71,330.56/x
  3. Step 3: Cross multiply
    127,909.60x = 176,511.36 × 71,330.56
  4. Step 4: Simplify right side
    127,909.60x = 12,590,654,155.16
  5. Step 5: Solve for x
    x = 12,590,654,155.16/127,909.60
  6. Step 6: Final answer
    x = 98,434.00

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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.