Home / 99,917.79-149,906.66-42,242.37

Finding the Fourth Proportional to 99,917.79, 149,906.66 and 42,242.37

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Solution

The fourth proportional to 99,917.79, 149,906.66 and 42,242.37 is: 63,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,917.79 : 149,906.66 = 42,242.37 : x
  2. Step 2: Convert to fraction form
    99,917.79/149,906.66 = 42,242.37/x
  3. Step 3: Cross multiply
    99,917.79x = 149,906.66 × 42,242.37
  4. Step 4: Simplify right side
    99,917.79x = 6,332,412,385.97
  5. Step 5: Solve for x
    x = 6,332,412,385.97/99,917.79
  6. Step 6: Final answer
    x = 63,376.23

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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.