Home / 342,235.20-513,388.01-129,182.57

Finding the Fourth Proportional to 342,235.20, 513,388.01 and 129,182.57

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Solution

The fourth proportional to 342,235.20, 513,388.01 and 129,182.57 is: 193,787.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,235.20 : 513,388.01 = 129,182.57 : x
  2. Step 2: Convert to fraction form
    342,235.20/513,388.01 = 129,182.57/x
  3. Step 3: Cross multiply
    342,235.20x = 513,388.01 × 129,182.57
  4. Step 4: Simplify right side
    342,235.20x = 66,320,779,326.13
  5. Step 5: Solve for x
    x = 66,320,779,326.13/342,235.20
  6. Step 6: Final answer
    x = 193,787.14

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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.