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Finding the Fourth Proportional to 127,863, 176,449.32 and 71,274.24

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Solution

The fourth proportional to 127,863, 176,449.32 and 71,274.24 is: 98,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,863 : 176,449.32 = 71,274.24 : x
  2. Step 2: Convert to fraction form
    127,863/176,449.32 = 71,274.24/x
  3. Step 3: Cross multiply
    127,863x = 176,449.32 × 71,274.24
  4. Step 4: Simplify right side
    127,863x = 12,576,291,181.52
  5. Step 5: Solve for x
    x = 12,576,291,181.52/127,863
  6. Step 6: Final answer
    x = 98,357.55

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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.