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Finding the Fourth Proportional to 143,614.56, 215,101.05 and 104,080.89

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Solution

The fourth proportional to 143,614.56, 215,101.05 and 104,080.89 is: 155,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,614.56 : 215,101.05 = 104,080.89 : x
  2. Step 2: Convert to fraction form
    143,614.56/215,101.05 = 104,080.89/x
  3. Step 3: Cross multiply
    143,614.56x = 215,101.05 × 104,080.89
  4. Step 4: Simplify right side
    143,614.56x = 22,387,908,723.93
  5. Step 5: Solve for x
    x = 22,387,908,723.93/143,614.56
  6. Step 6: Final answer
    x = 155,888.85

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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.