Home / 151,470.08-209,037.84-83,486.96

Finding the Fourth Proportional to 151,470.08, 209,037.84 and 83,486.96

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Solution

The fourth proportional to 151,470.08, 209,037.84 and 83,486.96 is: 115,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,470.08 : 209,037.84 = 83,486.96 : x
  2. Step 2: Convert to fraction form
    151,470.08/209,037.84 = 83,486.96/x
  3. Step 3: Cross multiply
    151,470.08x = 209,037.84 × 83,486.96
  4. Step 4: Simplify right side
    151,470.08x = 17,451,933,786.57
  5. Step 5: Solve for x
    x = 17,451,933,786.57/151,470.08
  6. Step 6: Final answer
    x = 115,217.04

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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.