Home / 109,000.20-163,500.30-100,470.90

Finding the Fourth Proportional to 109,000.20, 163,500.30 and 100,470.90

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Solution

The fourth proportional to 109,000.20, 163,500.30 and 100,470.90 is: 150,706.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,000.20 : 163,500.30 = 100,470.90 : x
  2. Step 2: Convert to fraction form
    109,000.20/163,500.30 = 100,470.90/x
  3. Step 3: Cross multiply
    109,000.20x = 163,500.30 × 100,470.90
  4. Step 4: Simplify right side
    109,000.20x = 16,427,022,291.27
  5. Step 5: Solve for x
    x = 16,427,022,291.27/109,000.20
  6. Step 6: Final answer
    x = 150,706.35

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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.