Home / 120,188.24-165,853.26-66,470.12

Finding the Fourth Proportional to 120,188.24, 165,853.26 and 66,470.12

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Solution

The fourth proportional to 120,188.24, 165,853.26 and 66,470.12 is: 91,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,188.24 : 165,853.26 = 66,470.12 : x
  2. Step 2: Convert to fraction form
    120,188.24/165,853.26 = 66,470.12/x
  3. Step 3: Cross multiply
    120,188.24x = 165,853.26 × 66,470.12
  4. Step 4: Simplify right side
    120,188.24x = 11,024,286,094.59
  5. Step 5: Solve for x
    x = 11,024,286,094.59/120,188.24
  6. Step 6: Final answer
    x = 91,725.16

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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.