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Finding the Fourth Proportional to 127,953.92, 176,576.72 and 71,368.96

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Solution

The fourth proportional to 127,953.92, 176,576.72 and 71,368.96 is: 98,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,953.92 : 176,576.72 = 71,368.96 : x
  2. Step 2: Convert to fraction form
    127,953.92/176,576.72 = 71,368.96/x
  3. Step 3: Cross multiply
    127,953.92x = 176,576.72 × 71,368.96
  4. Step 4: Simplify right side
    127,953.92x = 12,602,096,866.61
  5. Step 5: Solve for x
    x = 12,602,096,866.61/127,953.92
  6. Step 6: Final answer
    x = 98,489.34

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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.