Home / 109,000.20-163,500.30-75,649.80

Finding the Fourth Proportional to 109,000.20, 163,500.30 and 75,649.80

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Solution

The fourth proportional to 109,000.20, 163,500.30 and 75,649.80 is: 113,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,000.20 : 163,500.30 = 75,649.80 : x
  2. Step 2: Convert to fraction form
    109,000.20/163,500.30 = 75,649.80/x
  3. Step 3: Cross multiply
    109,000.20x = 163,500.30 × 75,649.80
  4. Step 4: Simplify right side
    109,000.20x = 12,368,764,994.94
  5. Step 5: Solve for x
    x = 12,368,764,994.94/109,000.20
  6. Step 6: Final answer
    x = 113,474.70

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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.