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Finding the Fourth Proportional to 127,992.76, 176,630.08 and 71,404.13

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Solution

The fourth proportional to 127,992.76, 176,630.08 and 71,404.13 is: 98,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,992.76 : 176,630.08 = 71,404.13 : x
  2. Step 2: Convert to fraction form
    127,992.76/176,630.08 = 71,404.13/x
  3. Step 3: Cross multiply
    127,992.76x = 176,630.08 × 71,404.13
  4. Step 4: Simplify right side
    127,992.76x = 12,612,117,194.23
  5. Step 5: Solve for x
    x = 12,612,117,194.23/127,992.76
  6. Step 6: Final answer
    x = 98,537.74

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1.5x scale

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.