Home / 99,366.20-137,124-54,043.20

Finding the Fourth Proportional to 99,366.20, 137,124 and 54,043.20

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Solution

The fourth proportional to 99,366.20, 137,124 and 54,043.20 is: 74,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,366.20 : 137,124 = 54,043.20 : x
  2. Step 2: Convert to fraction form
    99,366.20/137,124 = 54,043.20/x
  3. Step 3: Cross multiply
    99,366.20x = 137,124 × 54,043.20
  4. Step 4: Simplify right side
    99,366.20x = 7,410,619,756.80
  5. Step 5: Solve for x
    x = 7,410,619,756.80/99,366.20
  6. Step 6: Final answer
    x = 74,578.88

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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.