Home / 148,932.72-205,528.28-80,949.68

Finding the Fourth Proportional to 148,932.72, 205,528.28 and 80,949.68

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Solution

The fourth proportional to 148,932.72, 205,528.28 and 80,949.68 is: 111,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,932.72 : 205,528.28 = 80,949.68 : x
  2. Step 2: Convert to fraction form
    148,932.72/205,528.28 = 80,949.68/x
  3. Step 3: Cross multiply
    148,932.72x = 205,528.28 × 80,949.68
  4. Step 4: Simplify right side
    148,932.72x = 16,637,448,496.95
  5. Step 5: Solve for x
    x = 16,637,448,496.95/148,932.72
  6. Step 6: Final answer
    x = 111,711.17

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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.