Home / 148,828.80-205,387.44-80,845.75

Finding the Fourth Proportional to 148,828.80, 205,387.44 and 80,845.75

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Solution

The fourth proportional to 148,828.80, 205,387.44 and 80,845.75 is: 111,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,828.80 : 205,387.44 = 80,845.75 : x
  2. Step 2: Convert to fraction form
    148,828.80/205,387.44 = 80,845.75/x
  3. Step 3: Cross multiply
    148,828.80x = 205,387.44 × 80,845.75
  4. Step 4: Simplify right side
    148,828.80x = 16,604,701,113.91
  5. Step 5: Solve for x
    x = 16,604,701,113.91/148,828.80
  6. Step 6: Final answer
    x = 111,569.14

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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.