Home / 99,965.10-149,704.65-53,114.70

Finding the Fourth Proportional to 99,965.10, 149,704.65 and 53,114.70

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Solution

The fourth proportional to 99,965.10, 149,704.65 and 53,114.70 is: 79,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,965.10 : 149,704.65 = 53,114.70 : x
  2. Step 2: Convert to fraction form
    99,965.10/149,704.65 = 53,114.70/x
  3. Step 3: Cross multiply
    99,965.10x = 149,704.65 × 53,114.70
  4. Step 4: Simplify right side
    99,965.10x = 7,951,517,573.36
  5. Step 5: Solve for x
    x = 7,951,517,573.36/99,965.10
  6. Step 6: Final answer
    x = 79,542.94

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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.