Home / 148,674.12-205,171.80-80,691.66

Finding the Fourth Proportional to 148,674.12, 205,171.80 and 80,691.66

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Solution

The fourth proportional to 148,674.12, 205,171.80 and 80,691.66 is: 111,355.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,674.12 : 205,171.80 = 80,691.66 : x
  2. Step 2: Convert to fraction form
    148,674.12/205,171.80 = 80,691.66/x
  3. Step 3: Cross multiply
    148,674.12x = 205,171.80 × 80,691.66
  4. Step 4: Simplify right side
    148,674.12x = 16,555,653,127.19
  5. Step 5: Solve for x
    x = 16,555,653,127.19/148,674.12
  6. Step 6: Final answer
    x = 111,355.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.