Home / 148,719.10-205,232.52-80,736.04

Finding the Fourth Proportional to 148,719.10, 205,232.52 and 80,736.04

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Solution

The fourth proportional to 148,719.10, 205,232.52 and 80,736.04 is: 111,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,719.10 : 205,232.52 = 80,736.04 : x
  2. Step 2: Convert to fraction form
    148,719.10/205,232.52 = 80,736.04/x
  3. Step 3: Cross multiply
    148,719.10x = 205,232.52 × 80,736.04
  4. Step 4: Simplify right side
    148,719.10x = 16,569,660,944.02
  5. Step 5: Solve for x
    x = 16,569,660,944.02/148,719.10
  6. Step 6: Final answer
    x = 111,415.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.