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Finding the Fourth Proportional to 145,104.87, 217,741.37 and 60,857.53

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Solution

The fourth proportional to 145,104.87, 217,741.37 and 60,857.53 is: 91,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,104.87 : 217,741.37 = 60,857.53 : x
  2. Step 2: Convert to fraction form
    145,104.87/217,741.37 = 60,857.53/x
  3. Step 3: Cross multiply
    145,104.87x = 217,741.37 × 60,857.53
  4. Step 4: Simplify right side
    145,104.87x = 13,251,201,108.38
  5. Step 5: Solve for x
    x = 13,251,201,108.38/145,104.87
  6. Step 6: Final answer
    x = 91,321.55

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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.