Home / 147,505.38-221,422.19-76,409.04

Finding the Fourth Proportional to 147,505.38, 221,422.19 and 76,409.04

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Solution

The fourth proportional to 147,505.38, 221,422.19 and 76,409.04 is: 114,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,505.38 : 221,422.19 = 76,409.04 : x
  2. Step 2: Convert to fraction form
    147,505.38/221,422.19 = 76,409.04/x
  3. Step 3: Cross multiply
    147,505.38x = 221,422.19 × 76,409.04
  4. Step 4: Simplify right side
    147,505.38x = 16,918,656,972.60
  5. Step 5: Solve for x
    x = 16,918,656,972.60/147,505.38
  6. Step 6: Final answer
    x = 114,698.58

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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.