Home / 99,952.28-149,928.42-40,815.80

Finding the Fourth Proportional to 99,952.28, 149,928.42 and 40,815.80

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Solution

The fourth proportional to 99,952.28, 149,928.42 and 40,815.80 is: 61,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,952.28 : 149,928.42 = 40,815.80 : x
  2. Step 2: Convert to fraction form
    99,952.28/149,928.42 = 40,815.80/x
  3. Step 3: Cross multiply
    99,952.28x = 149,928.42 × 40,815.80
  4. Step 4: Simplify right side
    99,952.28x = 6,119,448,405.04
  5. Step 5: Solve for x
    x = 6,119,448,405.04/99,952.28
  6. Step 6: Final answer
    x = 61,223.70

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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.