Home / 119,747.68-165,261.64-66,043.20

Finding the Fourth Proportional to 119,747.68, 165,261.64 and 66,043.20

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Solution

The fourth proportional to 119,747.68, 165,261.64 and 66,043.20 is: 91,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,747.68 : 165,261.64 = 66,043.20 : x
  2. Step 2: Convert to fraction form
    119,747.68/165,261.64 = 66,043.20/x
  3. Step 3: Cross multiply
    119,747.68x = 165,261.64 × 66,043.20
  4. Step 4: Simplify right side
    119,747.68x = 10,914,407,542.85
  5. Step 5: Solve for x
    x = 10,914,407,542.85/119,747.68
  6. Step 6: Final answer
    x = 91,145.04

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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.