Home / 120,414.20-180,574.65-36,154.49

Finding the Fourth Proportional to 120,414.20, 180,574.65 and 36,154.49

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Solution

The fourth proportional to 120,414.20, 180,574.65 and 36,154.49 is: 54,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,414.20 : 180,574.65 = 36,154.49 : x
  2. Step 2: Convert to fraction form
    120,414.20/180,574.65 = 36,154.49/x
  3. Step 3: Cross multiply
    120,414.20x = 180,574.65 × 36,154.49
  4. Step 4: Simplify right side
    120,414.20x = 6,528,583,474.81
  5. Step 5: Solve for x
    x = 6,528,583,474.81/120,414.20
  6. Step 6: Final answer
    x = 54,217.72

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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.