Home / 148,934.87-205,531.49-80,952

Finding the Fourth Proportional to 148,934.87, 205,531.49 and 80,952

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Solution

The fourth proportional to 148,934.87, 205,531.49 and 80,952 is: 111,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,934.87 : 205,531.49 = 80,952 : x
  2. Step 2: Convert to fraction form
    148,934.87/205,531.49 = 80,952/x
  3. Step 3: Cross multiply
    148,934.87x = 205,531.49 × 80,952
  4. Step 4: Simplify right side
    148,934.87x = 16,638,185,380.86
  5. Step 5: Solve for x
    x = 16,638,185,380.86/148,934.87
  6. Step 6: Final answer
    x = 111,714.51

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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.