Home / 147,808.80-221,458.05-68,760.90

Finding the Fourth Proportional to 147,808.80, 221,458.05 and 68,760.90

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Solution

The fourth proportional to 147,808.80, 221,458.05 and 68,760.90 is: 103,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,808.80 : 221,458.05 = 68,760.90 : x
  2. Step 2: Convert to fraction form
    147,808.80/221,458.05 = 68,760.90/x
  3. Step 3: Cross multiply
    147,808.80x = 221,458.05 × 68,760.90
  4. Step 4: Simplify right side
    147,808.80x = 15,227,654,830.25
  5. Step 5: Solve for x
    x = 15,227,654,830.25/147,808.80
  6. Step 6: Final answer
    x = 103,022.65

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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.