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Finding the Fourth Proportional to 147,008.64, 202,871.70 and 89,647.86

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Solution

The fourth proportional to 147,008.64, 202,871.70 and 89,647.86 is: 123,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,008.64 : 202,871.70 = 89,647.86 : x
  2. Step 2: Convert to fraction form
    147,008.64/202,871.70 = 89,647.86/x
  3. Step 3: Cross multiply
    147,008.64x = 202,871.70 × 89,647.86
  4. Step 4: Simplify right side
    147,008.64x = 18,187,013,759.56
  5. Step 5: Solve for x
    x = 18,187,013,759.56/147,008.64
  6. Step 6: Final answer
    x = 123,713.91

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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.