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Finding the Fourth Proportional to 127,843.31, 176,424.68 and 70,484.78

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Solution

The fourth proportional to 127,843.31, 176,424.68 and 70,484.78 is: 97,269.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,843.31 : 176,424.68 = 70,484.78 : x
  2. Step 2: Convert to fraction form
    127,843.31/176,424.68 = 70,484.78/x
  3. Step 3: Cross multiply
    127,843.31x = 176,424.68 × 70,484.78
  4. Step 4: Simplify right side
    127,843.31x = 12,435,255,373.64
  5. Step 5: Solve for x
    x = 12,435,255,373.64/127,843.31
  6. Step 6: Final answer
    x = 97,269.50

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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.