Home / 99,180.45-148,511.88-54,713.88

Finding the Fourth Proportional to 99,180.45, 148,511.88 and 54,713.88

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Solution

The fourth proportional to 99,180.45, 148,511.88 and 54,713.88 is: 81,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,180.45 : 148,511.88 = 54,713.88 : x
  2. Step 2: Convert to fraction form
    99,180.45/148,511.88 = 54,713.88/x
  3. Step 3: Cross multiply
    99,180.45x = 148,511.88 × 54,713.88
  4. Step 4: Simplify right side
    99,180.45x = 8,125,661,180.89
  5. Step 5: Solve for x
    x = 8,125,661,180.89/99,180.45
  6. Step 6: Final answer
    x = 81,928.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.