Home / 129,417.30-194,125.95-123,771.60

Finding the Fourth Proportional to 129,417.30, 194,125.95 and 123,771.60

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Solution

The fourth proportional to 129,417.30, 194,125.95 and 123,771.60 is: 185,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,417.30 : 194,125.95 = 123,771.60 : x
  2. Step 2: Convert to fraction form
    129,417.30/194,125.95 = 123,771.60/x
  3. Step 3: Cross multiply
    129,417.30x = 194,125.95 × 123,771.60
  4. Step 4: Simplify right side
    129,417.30x = 24,027,279,433.02
  5. Step 5: Solve for x
    x = 24,027,279,433.02/129,417.30
  6. Step 6: Final answer
    x = 185,657.40

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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.