Home / 99,938.94-149,949.92-43,750.12

Finding the Fourth Proportional to 99,938.94, 149,949.92 and 43,750.12

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Solution

The fourth proportional to 99,938.94, 149,949.92 and 43,750.12 is: 65,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,938.94 : 149,949.92 = 43,750.12 : x
  2. Step 2: Convert to fraction form
    99,938.94/149,949.92 = 43,750.12/x
  3. Step 3: Cross multiply
    99,938.94x = 149,949.92 × 43,750.12
  4. Step 4: Simplify right side
    99,938.94x = 6,560,326,993.99
  5. Step 5: Solve for x
    x = 6,560,326,993.99/99,938.94
  6. Step 6: Final answer
    x = 65,643.35

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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.