Home / 129,681.26-194,475.08-54,807.20

Finding the Fourth Proportional to 129,681.26, 194,475.08 and 54,807.20

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Solution

The fourth proportional to 129,681.26, 194,475.08 and 54,807.20 is: 82,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,681.26 : 194,475.08 = 54,807.20 : x
  2. Step 2: Convert to fraction form
    129,681.26/194,475.08 = 54,807.20/x
  3. Step 3: Cross multiply
    129,681.26x = 194,475.08 × 54,807.20
  4. Step 4: Simplify right side
    129,681.26x = 10,658,633,358.16
  5. Step 5: Solve for x
    x = 10,658,633,358.16/129,681.26
  6. Step 6: Final answer
    x = 82,191.01

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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.