Home / 148,973.29-205,584.88-80,988.78

Finding the Fourth Proportional to 148,973.29, 205,584.88 and 80,988.78

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Solution

The fourth proportional to 148,973.29, 205,584.88 and 80,988.78 is: 111,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,973.29 : 205,584.88 = 80,988.78 : x
  2. Step 2: Convert to fraction form
    148,973.29/205,584.88 = 80,988.78/x
  3. Step 3: Cross multiply
    148,973.29x = 205,584.88 × 80,988.78
  4. Step 4: Simplify right side
    148,973.29x = 16,650,068,181.56
  5. Step 5: Solve for x
    x = 16,650,068,181.56/148,973.29
  6. Step 6: Final answer
    x = 111,765.46

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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.