Home / 91,867,772.85-137,801,659.28-81,823,537.95

Finding the Fourth Proportional to 91,867,772.85, 137,801,659.28 and 81,823,537.95

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Solution

The fourth proportional to 91,867,772.85, 137,801,659.28 and 81,823,537.95 is: 122,735,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,867,772.85 : 137,801,659.28 = 81,823,537.95 : x
  2. Step 2: Convert to fraction form
    91,867,772.85/137,801,659.28 = 81,823,537.95/x
  3. Step 3: Cross multiply
    91,867,772.85x = 137,801,659.28 × 81,823,537.95
  4. Step 4: Simplify right side
    91,867,772.85x = 11,275,419,297,260,932
  5. Step 5: Solve for x
    x = 11,275,419,297,260,932/91,867,772.85
  6. Step 6: Final answer
    x = 122,735,306.93

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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.