Home / 147,841.20-221,761.80-91,744.65

Finding the Fourth Proportional to 147,841.20, 221,761.80 and 91,744.65

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Solution

The fourth proportional to 147,841.20, 221,761.80 and 91,744.65 is: 137,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,841.20 : 221,761.80 = 91,744.65 : x
  2. Step 2: Convert to fraction form
    147,841.20/221,761.80 = 91,744.65/x
  3. Step 3: Cross multiply
    147,841.20x = 221,761.80 × 91,744.65
  4. Step 4: Simplify right side
    147,841.20x = 20,345,458,724.37
  5. Step 5: Solve for x
    x = 20,345,458,724.37/147,841.20
  6. Step 6: Final answer
    x = 137,616.98

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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.