Home / 129,461.28-194,267.44-54,576.88

Finding the Fourth Proportional to 129,461.28, 194,267.44 and 54,576.88

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Solution

The fourth proportional to 129,461.28, 194,267.44 and 54,576.88 is: 81,897.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,461.28 : 194,267.44 = 54,576.88 : x
  2. Step 2: Convert to fraction form
    129,461.28/194,267.44 = 54,576.88/x
  3. Step 3: Cross multiply
    129,461.28x = 194,267.44 × 54,576.88
  4. Step 4: Simplify right side
    129,461.28x = 10,602,510,760.79
  5. Step 5: Solve for x
    x = 10,602,510,760.79/129,461.28
  6. Step 6: Final answer
    x = 81,897.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.