Home / 91,905.57-137,926.98-68,267.70

Finding the Fourth Proportional to 91,905.57, 137,926.98 and 68,267.70

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Solution

The fourth proportional to 91,905.57, 137,926.98 and 68,267.70 is: 102,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,905.57 : 137,926.98 = 68,267.70 : x
  2. Step 2: Convert to fraction form
    91,905.57/137,926.98 = 68,267.70/x
  3. Step 3: Cross multiply
    91,905.57x = 137,926.98 × 68,267.70
  4. Step 4: Simplify right side
    91,905.57x = 9,415,957,692.55
  5. Step 5: Solve for x
    x = 9,415,957,692.55/91,905.57
  6. Step 6: Final answer
    x = 102,452.52

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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.