Home / 148,854.90-205,418.94-80,871.33

Finding the Fourth Proportional to 148,854.90, 205,418.94 and 80,871.33

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Solution

The fourth proportional to 148,854.90, 205,418.94 and 80,871.33 is: 111,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,854.90 : 205,418.94 = 80,871.33 : x
  2. Step 2: Convert to fraction form
    148,854.90/205,418.94 = 80,871.33/x
  3. Step 3: Cross multiply
    148,854.90x = 205,418.94 × 80,871.33
  4. Step 4: Simplify right side
    148,854.90x = 16,612,502,884.99
  5. Step 5: Solve for x
    x = 16,612,502,884.99/148,854.90
  6. Step 6: Final answer
    x = 111,601.99

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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.