Home / 140,198.55-209,962.59-80,854.30

Finding the Fourth Proportional to 140,198.55, 209,962.59 and 80,854.30

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Solution

The fourth proportional to 140,198.55, 209,962.59 and 80,854.30 is: 121,088.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,198.55 : 209,962.59 = 80,854.30 : x
  2. Step 2: Convert to fraction form
    140,198.55/209,962.59 = 80,854.30/x
  3. Step 3: Cross multiply
    140,198.55x = 209,962.59 × 80,854.30
  4. Step 4: Simplify right side
    140,198.55x = 16,976,378,768.39
  5. Step 5: Solve for x
    x = 16,976,378,768.39/140,198.55
  6. Step 6: Final answer
    x = 121,088.12

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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.