Home / 119,835.30-165,373.60-66,122.30

Finding the Fourth Proportional to 119,835.30, 165,373.60 and 66,122.30

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Solution

The fourth proportional to 119,835.30, 165,373.60 and 66,122.30 is: 91,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,835.30 : 165,373.60 = 66,122.30 : x
  2. Step 2: Convert to fraction form
    119,835.30/165,373.60 = 66,122.30/x
  3. Step 3: Cross multiply
    119,835.30x = 165,373.60 × 66,122.30
  4. Step 4: Simplify right side
    119,835.30x = 10,934,882,791.28
  5. Step 5: Solve for x
    x = 10,934,882,791.28/119,835.30
  6. Step 6: Final answer
    x = 91,249.26

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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.