Home / 148,845.15-205,406.55-80,862.39

Finding the Fourth Proportional to 148,845.15, 205,406.55 and 80,862.39

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Solution

The fourth proportional to 148,845.15, 205,406.55 and 80,862.39 is: 111,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,845.15 : 205,406.55 = 80,862.39 : x
  2. Step 2: Convert to fraction form
    148,845.15/205,406.55 = 80,862.39/x
  3. Step 3: Cross multiply
    148,845.15x = 205,406.55 × 80,862.39
  4. Step 4: Simplify right side
    148,845.15x = 16,609,664,554.65
  5. Step 5: Solve for x
    x = 16,609,664,554.65/148,845.15
  6. Step 6: Final answer
    x = 111,590.23

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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.