Home / 140,728.26-211,165.30-80,804.46

Finding the Fourth Proportional to 140,728.26, 211,165.30 and 80,804.46

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Solution

The fourth proportional to 140,728.26, 211,165.30 and 80,804.46 is: 121,248.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,728.26 : 211,165.30 = 80,804.46 : x
  2. Step 2: Convert to fraction form
    140,728.26/211,165.30 = 80,804.46/x
  3. Step 3: Cross multiply
    140,728.26x = 211,165.30 × 80,804.46
  4. Step 4: Simplify right side
    140,728.26x = 17,063,098,037.24
  5. Step 5: Solve for x
    x = 17,063,098,037.24/140,728.26
  6. Step 6: Final answer
    x = 121,248.55

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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.