Home / 129,607.83-194,438.88-54,728.19

Finding the Fourth Proportional to 129,607.83, 194,438.88 and 54,728.19

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Solution

The fourth proportional to 129,607.83, 194,438.88 and 54,728.19 is: 82,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,607.83 : 194,438.88 = 54,728.19 : x
  2. Step 2: Convert to fraction form
    129,607.83/194,438.88 = 54,728.19/x
  3. Step 3: Cross multiply
    129,607.83x = 194,438.88 × 54,728.19
  4. Step 4: Simplify right side
    129,607.83x = 10,641,287,968.03
  5. Step 5: Solve for x
    x = 10,641,287,968.03/129,607.83
  6. Step 6: Final answer
    x = 82,103.74

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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.