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Finding the Fourth Proportional to 145,687.60, 218,401.80 and 95,791.60

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Solution

The fourth proportional to 145,687.60, 218,401.80 and 95,791.60 is: 143,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,687.60 : 218,401.80 = 95,791.60 : x
  2. Step 2: Convert to fraction form
    145,687.60/218,401.80 = 95,791.60/x
  3. Step 3: Cross multiply
    145,687.60x = 218,401.80 × 95,791.60
  4. Step 4: Simplify right side
    145,687.60x = 20,921,057,864.88
  5. Step 5: Solve for x
    x = 20,921,057,864.88/145,687.60
  6. Step 6: Final answer
    x = 143,602.19

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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.