Home / 120,288.87-180,382.44-36,061.02

Finding the Fourth Proportional to 120,288.87, 180,382.44 and 36,061.02

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Solution

The fourth proportional to 120,288.87, 180,382.44 and 36,061.02 is: 54,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,288.87 : 180,382.44 = 36,061.02 : x
  2. Step 2: Convert to fraction form
    120,288.87/180,382.44 = 36,061.02/x
  3. Step 3: Cross multiply
    120,288.87x = 180,382.44 × 36,061.02
  4. Step 4: Simplify right side
    120,288.87x = 6,504,774,776.49
  5. Step 5: Solve for x
    x = 6,504,774,776.49/120,288.87
  6. Step 6: Final answer
    x = 54,076.28

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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.