Home / 147,811.10-221,716.65-54,383.90

Finding the Fourth Proportional to 147,811.10, 221,716.65 and 54,383.90

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Solution

The fourth proportional to 147,811.10, 221,716.65 and 54,383.90 is: 81,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,811.10 : 221,716.65 = 54,383.90 : x
  2. Step 2: Convert to fraction form
    147,811.10/221,716.65 = 54,383.90/x
  3. Step 3: Cross multiply
    147,811.10x = 221,716.65 × 54,383.90
  4. Step 4: Simplify right side
    147,811.10x = 12,057,816,121.94
  5. Step 5: Solve for x
    x = 12,057,816,121.94/147,811.10
  6. Step 6: Final answer
    x = 81,575.85

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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.