Home / 148,948.74-205,548.84-80,965.70

Finding the Fourth Proportional to 148,948.74, 205,548.84 and 80,965.70

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Solution

The fourth proportional to 148,948.74, 205,548.84 and 80,965.70 is: 111,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,948.74 : 205,548.84 = 80,965.70 : x
  2. Step 2: Convert to fraction form
    148,948.74/205,548.84 = 80,965.70/x
  3. Step 3: Cross multiply
    148,948.74x = 205,548.84 × 80,965.70
  4. Step 4: Simplify right side
    148,948.74x = 16,642,405,714.79
  5. Step 5: Solve for x
    x = 16,642,405,714.79/148,948.74
  6. Step 6: Final answer
    x = 111,732.44

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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.