Home / 119,977.80-165,566.20-66,261.66

Finding the Fourth Proportional to 119,977.80, 165,566.20 and 66,261.66

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Solution

The fourth proportional to 119,977.80, 165,566.20 and 66,261.66 is: 91,439.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,977.80 : 165,566.20 = 66,261.66 : x
  2. Step 2: Convert to fraction form
    119,977.80/165,566.20 = 66,261.66/x
  3. Step 3: Cross multiply
    119,977.80x = 165,566.20 × 66,261.66
  4. Step 4: Simplify right side
    119,977.80x = 10,970,690,920.58
  5. Step 5: Solve for x
    x = 10,970,690,920.58/119,977.80
  6. Step 6: Final answer
    x = 91,439.34

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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.