Home / 120,552.40-180,863.79-53,976.95

Finding the Fourth Proportional to 120,552.40, 180,863.79 and 53,976.95

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Solution

The fourth proportional to 120,552.40, 180,863.79 and 53,976.95 is: 80,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,552.40 : 180,863.79 = 53,976.95 : x
  2. Step 2: Convert to fraction form
    120,552.40/180,863.79 = 53,976.95/x
  3. Step 3: Cross multiply
    120,552.40x = 180,863.79 × 53,976.95
  4. Step 4: Simplify right side
    120,552.40x = 9,762,475,321.15
  5. Step 5: Solve for x
    x = 9,762,475,321.15/120,552.40
  6. Step 6: Final answer
    x = 80,981.18

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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.