Home / 119,778.45-165,288.30-66,060.26

Finding the Fourth Proportional to 119,778.45, 165,288.30 and 66,060.26

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Solution

The fourth proportional to 119,778.45, 165,288.30 and 66,060.26 is: 91,159.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.45 : 165,288.30 = 66,060.26 : x
  2. Step 2: Convert to fraction form
    119,778.45/165,288.30 = 66,060.26/x
  3. Step 3: Cross multiply
    119,778.45x = 165,288.30 × 66,060.26
  4. Step 4: Simplify right side
    119,778.45x = 10,918,987,618.62
  5. Step 5: Solve for x
    x = 10,918,987,618.62/119,778.45
  6. Step 6: Final answer
    x = 91,159.87

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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.