Home / 148,890.74-205,470.06-80,908.28

Finding the Fourth Proportional to 148,890.74, 205,470.06 and 80,908.28

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Solution

The fourth proportional to 148,890.74, 205,470.06 and 80,908.28 is: 111,653.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.74 : 205,470.06 = 80,908.28 : x
  2. Step 2: Convert to fraction form
    148,890.74/205,470.06 = 80,908.28/x
  3. Step 3: Cross multiply
    148,890.74x = 205,470.06 × 80,908.28
  4. Step 4: Simplify right side
    148,890.74x = 16,624,229,146.10
  5. Step 5: Solve for x
    x = 16,624,229,146.10/148,890.74
  6. Step 6: Final answer
    x = 111,653.88

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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.