Home / 120,306.61-180,358.43-75,835.34

Finding the Fourth Proportional to 120,306.61, 180,358.43 and 75,835.34

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Solution

The fourth proportional to 120,306.61, 180,358.43 and 75,835.34 is: 113,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,306.61 : 180,358.43 = 75,835.34 : x
  2. Step 2: Convert to fraction form
    120,306.61/180,358.43 = 75,835.34/x
  3. Step 3: Cross multiply
    120,306.61x = 180,358.43 × 75,835.34
  4. Step 4: Simplify right side
    120,306.61x = 13,677,542,481.74
  5. Step 5: Solve for x
    x = 13,677,542,481.74/120,306.61
  6. Step 6: Final answer
    x = 113,689.04

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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.