Home / 120,370.19-180,472.05-52,869.65

Finding the Fourth Proportional to 120,370.19, 180,472.05 and 52,869.65

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Solution

The fourth proportional to 120,370.19, 180,472.05 and 52,869.65 is: 79,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,370.19 : 180,472.05 = 52,869.65 : x
  2. Step 2: Convert to fraction form
    120,370.19/180,472.05 = 52,869.65/x
  3. Step 3: Cross multiply
    120,370.19x = 180,472.05 × 52,869.65
  4. Step 4: Simplify right side
    120,370.19x = 9,541,493,215.92
  5. Step 5: Solve for x
    x = 9,541,493,215.92/120,370.19
  6. Step 6: Final answer
    x = 79,267.91

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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.