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Finding the Fourth Proportional to 127,894.56, 176,488.04 and 71,295

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Solution

The fourth proportional to 127,894.56, 176,488.04 and 71,295 is: 98,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,894.56 : 176,488.04 = 71,295 : x
  2. Step 2: Convert to fraction form
    127,894.56/176,488.04 = 71,295/x
  3. Step 3: Cross multiply
    127,894.56x = 176,488.04 × 71,295
  4. Step 4: Simplify right side
    127,894.56x = 12,582,714,811.80
  5. Step 5: Solve for x
    x = 12,582,714,811.80/127,894.56
  6. Step 6: Final answer
    x = 98,383.50

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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.