Home / 112,989.16-169,379.12-41,872.20

Finding the Fourth Proportional to 112,989.16, 169,379.12 and 41,872.20

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Solution

The fourth proportional to 112,989.16, 169,379.12 and 41,872.20 is: 62,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,989.16 : 169,379.12 = 41,872.20 : x
  2. Step 2: Convert to fraction form
    112,989.16/169,379.12 = 41,872.20/x
  3. Step 3: Cross multiply
    112,989.16x = 169,379.12 × 41,872.20
  4. Step 4: Simplify right side
    112,989.16x = 7,092,276,388.46
  5. Step 5: Solve for x
    x = 7,092,276,388.46/112,989.16
  6. Step 6: Final answer
    x = 62,769.53

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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.