Home / 140,103.60-209,924.55-80,835.90

Finding the Fourth Proportional to 140,103.60, 209,924.55 and 80,835.90

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Solution

The fourth proportional to 140,103.60, 209,924.55 and 80,835.90 is: 121,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,103.60 : 209,924.55 = 80,835.90 : x
  2. Step 2: Convert to fraction form
    140,103.60/209,924.55 = 80,835.90/x
  3. Step 3: Cross multiply
    140,103.60x = 209,924.55 × 80,835.90
  4. Step 4: Simplify right side
    140,103.60x = 16,969,439,931.35
  5. Step 5: Solve for x
    x = 16,969,439,931.35/140,103.60
  6. Step 6: Final answer
    x = 121,120.66

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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.