Home / 80,247.36-120,148.56-52,199.76

Finding the Fourth Proportional to 80,247.36, 120,148.56 and 52,199.76

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Solution

The fourth proportional to 80,247.36, 120,148.56 and 52,199.76 is: 78,154.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,247.36 : 120,148.56 = 52,199.76 : x
  2. Step 2: Convert to fraction form
    80,247.36/120,148.56 = 52,199.76/x
  3. Step 3: Cross multiply
    80,247.36x = 120,148.56 × 52,199.76
  4. Step 4: Simplify right side
    80,247.36x = 6,271,725,996.35
  5. Step 5: Solve for x
    x = 6,271,725,996.35/80,247.36
  6. Step 6: Final answer
    x = 78,154.92

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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.