Home / 148,945.26-205,545.66-80,962.20

Finding the Fourth Proportional to 148,945.26, 205,545.66 and 80,962.20

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Solution

The fourth proportional to 148,945.26, 205,545.66 and 80,962.20 is: 111,728.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,945.26 : 205,545.66 = 80,962.20 : x
  2. Step 2: Convert to fraction form
    148,945.26/205,545.66 = 80,962.20/x
  3. Step 3: Cross multiply
    148,945.26x = 205,545.66 × 80,962.20
  4. Step 4: Simplify right side
    148,945.26x = 16,641,428,834.05
  5. Step 5: Solve for x
    x = 16,641,428,834.05/148,945.26
  6. Step 6: Final answer
    x = 111,728.49

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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.