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Finding the Fourth Proportional to 220,174.71, 303,841.13 and 124,699.86

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Solution

The fourth proportional to 220,174.71, 303,841.13 and 124,699.86 is: 172,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,174.71 : 303,841.13 = 124,699.86 : x
  2. Step 2: Convert to fraction form
    220,174.71/303,841.13 = 124,699.86/x
  3. Step 3: Cross multiply
    220,174.71x = 303,841.13 × 124,699.86
  4. Step 4: Simplify right side
    220,174.71x = 37,888,945,749.74
  5. Step 5: Solve for x
    x = 37,888,945,749.74/220,174.71
  6. Step 6: Final answer
    x = 172,085.82

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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.