Home / 99,873.10-137,789.07-59,028.66

Finding the Fourth Proportional to 99,873.10, 137,789.07 and 59,028.66

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Solution

The fourth proportional to 99,873.10, 137,789.07 and 59,028.66 is: 81,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,873.10 : 137,789.07 = 59,028.66 : x
  2. Step 2: Convert to fraction form
    99,873.10/137,789.07 = 59,028.66/x
  3. Step 3: Cross multiply
    99,873.10x = 137,789.07 × 59,028.66
  4. Step 4: Simplify right side
    99,873.10x = 8,133,503,906.39
  5. Step 5: Solve for x
    x = 8,133,503,906.39/99,873.10
  6. Step 6: Final answer
    x = 81,438.38

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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.