Home / 175,279.60-263,011.20-80,538.40

Finding the Fourth Proportional to 175,279.60, 263,011.20 and 80,538.40

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Solution

The fourth proportional to 175,279.60, 263,011.20 and 80,538.40 is: 120,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,279.60 : 263,011.20 = 80,538.40 : x
  2. Step 2: Convert to fraction form
    175,279.60/263,011.20 = 80,538.40/x
  3. Step 3: Cross multiply
    175,279.60x = 263,011.20 × 80,538.40
  4. Step 4: Simplify right side
    175,279.60x = 21,182,501,230.08
  5. Step 5: Solve for x
    x = 21,182,501,230.08/175,279.60
  6. Step 6: Final answer
    x = 120,849.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.