Home / 148,959.14-205,561.18-80,977.82

Finding the Fourth Proportional to 148,959.14, 205,561.18 and 80,977.82

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Solution

The fourth proportional to 148,959.14, 205,561.18 and 80,977.82 is: 111,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,959.14 : 205,561.18 = 80,977.82 : x
  2. Step 2: Convert to fraction form
    148,959.14/205,561.18 = 80,977.82/x
  3. Step 3: Cross multiply
    148,959.14x = 205,561.18 × 80,977.82
  4. Step 4: Simplify right side
    148,959.14x = 16,645,896,112.33
  5. Step 5: Solve for x
    x = 16,645,896,112.33/148,959.14
  6. Step 6: Final answer
    x = 111,748.07

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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.