Home / 239,566.15-330,589.35-132,129.78

Finding the Fourth Proportional to 239,566.15, 330,589.35 and 132,129.78

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Solution

The fourth proportional to 239,566.15, 330,589.35 and 132,129.78 is: 182,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,566.15 : 330,589.35 = 132,129.78 : x
  2. Step 2: Convert to fraction form
    239,566.15/330,589.35 = 132,129.78/x
  3. Step 3: Cross multiply
    239,566.15x = 330,589.35 × 132,129.78
  4. Step 4: Simplify right side
    239,566.15x = 43,680,698,085.84
  5. Step 5: Solve for x
    x = 43,680,698,085.84/239,566.15
  6. Step 6: Final answer
    x = 182,332.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.