Home / 119,909.20-165,484.68-66,199.12

Finding the Fourth Proportional to 119,909.20, 165,484.68 and 66,199.12

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Solution

The fourth proportional to 119,909.20, 165,484.68 and 66,199.12 is: 91,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,909.20 : 165,484.68 = 66,199.12 : x
  2. Step 2: Convert to fraction form
    119,909.20/165,484.68 = 66,199.12/x
  3. Step 3: Cross multiply
    119,909.20x = 165,484.68 × 66,199.12
  4. Step 4: Simplify right side
    119,909.20x = 10,954,940,189.48
  5. Step 5: Solve for x
    x = 10,954,940,189.48/119,909.20
  6. Step 6: Final answer
    x = 91,360.30

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1.5x scale

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.