Home / 147,218.38-220,781.09-47,356.31

Finding the Fourth Proportional to 147,218.38, 220,781.09 and 47,356.31

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Solution

The fourth proportional to 147,218.38, 220,781.09 and 47,356.31 is: 71,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.38 : 220,781.09 = 47,356.31 : x
  2. Step 2: Convert to fraction form
    147,218.38/220,781.09 = 47,356.31/x
  3. Step 3: Cross multiply
    147,218.38x = 220,781.09 × 47,356.31
  4. Step 4: Simplify right side
    147,218.38x = 10,455,378,410.52
  5. Step 5: Solve for x
    x = 10,455,378,410.52/147,218.38
  6. Step 6: Final answer
    x = 71,019.52

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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.