Home / 148,758.38-205,283.09-80,775.52

Finding the Fourth Proportional to 148,758.38, 205,283.09 and 80,775.52

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Solution

The fourth proportional to 148,758.38, 205,283.09 and 80,775.52 is: 111,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,758.38 : 205,283.09 = 80,775.52 : x
  2. Step 2: Convert to fraction form
    148,758.38/205,283.09 = 80,775.52/x
  3. Step 3: Cross multiply
    148,758.38x = 205,283.09 × 80,775.52
  4. Step 4: Simplify right side
    148,758.38x = 16,581,848,341.96
  5. Step 5: Solve for x
    x = 16,581,848,341.96/148,758.38
  6. Step 6: Final answer
    x = 111,468.33

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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.