Home / 80,197.92-120,225.60-42,730.56

Finding the Fourth Proportional to 80,197.92, 120,225.60 and 42,730.56

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Solution

The fourth proportional to 80,197.92, 120,225.60 and 42,730.56 is: 64,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,197.92 : 120,225.60 = 42,730.56 : x
  2. Step 2: Convert to fraction form
    80,197.92/120,225.60 = 42,730.56/x
  3. Step 3: Cross multiply
    80,197.92x = 120,225.60 × 42,730.56
  4. Step 4: Simplify right side
    80,197.92x = 5,137,307,214.34
  5. Step 5: Solve for x
    x = 5,137,307,214.34/80,197.92
  6. Step 6: Final answer
    x = 64,057.86

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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.