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Finding the Fourth Proportional to 215,053.93, 296,741.91 and 123,158.92

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Solution

The fourth proportional to 215,053.93, 296,741.91 and 123,158.92 is: 169,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,053.93 : 296,741.91 = 123,158.92 : x
  2. Step 2: Convert to fraction form
    215,053.93/296,741.91 = 123,158.92/x
  3. Step 3: Cross multiply
    215,053.93x = 296,741.91 × 123,158.92
  4. Step 4: Simplify right side
    215,053.93x = 36,546,413,154.34
  5. Step 5: Solve for x
    x = 36,546,413,154.34/215,053.93
  6. Step 6: Final answer
    x = 169,940.69

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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.