Home / 120,381.38-180,571.62-36,141.17

Finding the Fourth Proportional to 120,381.38, 180,571.62 and 36,141.17

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Solution

The fourth proportional to 120,381.38, 180,571.62 and 36,141.17 is: 54,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,381.38 : 180,571.62 = 36,141.17 : x
  2. Step 2: Convert to fraction form
    120,381.38/180,571.62 = 36,141.17/x
  3. Step 3: Cross multiply
    120,381.38x = 180,571.62 × 36,141.17
  4. Step 4: Simplify right side
    120,381.38x = 6,526,069,615.60
  5. Step 5: Solve for x
    x = 6,526,069,615.60/120,381.38
  6. Step 6: Final answer
    x = 54,211.62

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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.