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Finding the Fourth Proportional to 147,713.61, 203,843.73 and 80,645.61

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Solution

The fourth proportional to 147,713.61, 203,843.73 and 80,645.61 is: 111,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,713.61 : 203,843.73 = 80,645.61 : x
  2. Step 2: Convert to fraction form
    147,713.61/203,843.73 = 80,645.61/x
  3. Step 3: Cross multiply
    147,713.61x = 203,843.73 × 80,645.61
  4. Step 4: Simplify right side
    147,713.61x = 16,439,101,950.53
  5. Step 5: Solve for x
    x = 16,439,101,950.53/147,713.61
  6. Step 6: Final answer
    x = 111,290.37

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1.5x scale

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.