Home / 148,763.46-205,296.05-80,780.57

Finding the Fourth Proportional to 148,763.46, 205,296.05 and 80,780.57

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Solution

The fourth proportional to 148,763.46, 205,296.05 and 80,780.57 is: 111,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,763.46 : 205,296.05 = 80,780.57 : x
  2. Step 2: Convert to fraction form
    148,763.46/205,296.05 = 80,780.57/x
  3. Step 3: Cross multiply
    148,763.46x = 205,296.05 × 80,780.57
  4. Step 4: Simplify right side
    148,763.46x = 16,583,930,507.37
  5. Step 5: Solve for x
    x = 16,583,930,507.37/148,763.46
  6. Step 6: Final answer
    x = 111,478.52

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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.