Home / 148,972.39-205,585.95-80,993.94

Finding the Fourth Proportional to 148,972.39, 205,585.95 and 80,993.94

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Solution

The fourth proportional to 148,972.39, 205,585.95 and 80,993.94 is: 111,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,972.39 : 205,585.95 = 80,993.94 : x
  2. Step 2: Convert to fraction form
    148,972.39/205,585.95 = 80,993.94/x
  3. Step 3: Cross multiply
    148,972.39x = 205,585.95 × 80,993.94
  4. Step 4: Simplify right side
    148,972.39x = 16,651,215,071.21
  5. Step 5: Solve for x
    x = 16,651,215,071.21/148,972.39
  6. Step 6: Final answer
    x = 111,773.83

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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.