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Finding the Fourth Proportional to 132,820.20, 199,230.30 and 69,615.90

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Solution

The fourth proportional to 132,820.20, 199,230.30 and 69,615.90 is: 104,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,820.20 : 199,230.30 = 69,615.90 : x
  2. Step 2: Convert to fraction form
    132,820.20/199,230.30 = 69,615.90/x
  3. Step 3: Cross multiply
    132,820.20x = 199,230.30 × 69,615.90
  4. Step 4: Simplify right side
    132,820.20x = 13,869,596,641.77
  5. Step 5: Solve for x
    x = 13,869,596,641.77/132,820.20
  6. Step 6: Final answer
    x = 104,423.85

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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.