Home / 121,042.16-181,572.92-36,809.85

Finding the Fourth Proportional to 121,042.16, 181,572.92 and 36,809.85

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Solution

The fourth proportional to 121,042.16, 181,572.92 and 36,809.85 is: 55,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,042.16 : 181,572.92 = 36,809.85 : x
  2. Step 2: Convert to fraction form
    121,042.16/181,572.92 = 36,809.85/x
  3. Step 3: Cross multiply
    121,042.16x = 181,572.92 × 36,809.85
  4. Step 4: Simplify right side
    121,042.16x = 6,683,671,765.21
  5. Step 5: Solve for x
    x = 6,683,671,765.21/121,042.16
  6. Step 6: Final answer
    x = 55,217.72

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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.