Home / 99,660.94-137,542.82-61,412.32

Finding the Fourth Proportional to 99,660.94, 137,542.82 and 61,412.32

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Solution

The fourth proportional to 99,660.94, 137,542.82 and 61,412.32 is: 84,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660.94 : 137,542.82 = 61,412.32 : x
  2. Step 2: Convert to fraction form
    99,660.94/137,542.82 = 61,412.32/x
  3. Step 3: Cross multiply
    99,660.94x = 137,542.82 × 61,412.32
  4. Step 4: Simplify right side
    99,660.94x = 8,446,823,675.54
  5. Step 5: Solve for x
    x = 8,446,823,675.54/99,660.94
  6. Step 6: Final answer
    x = 84,755.61

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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.