Home / 129,723.55-194,648.88-87,055.86

Finding the Fourth Proportional to 129,723.55, 194,648.88 and 87,055.86

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Solution

The fourth proportional to 129,723.55, 194,648.88 and 87,055.86 is: 130,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,723.55 : 194,648.88 = 87,055.86 : x
  2. Step 2: Convert to fraction form
    129,723.55/194,648.88 = 87,055.86/x
  3. Step 3: Cross multiply
    129,723.55x = 194,648.88 × 87,055.86
  4. Step 4: Simplify right side
    129,723.55x = 16,945,326,702.83
  5. Step 5: Solve for x
    x = 16,945,326,702.83/129,723.55
  6. Step 6: Final answer
    x = 130,626.45

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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.