Home / 92,939.11-139,266.73-69,131.53

Finding the Fourth Proportional to 92,939.11, 139,266.73 and 69,131.53

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Solution

The fourth proportional to 92,939.11, 139,266.73 and 69,131.53 is: 103,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,939.11 : 139,266.73 = 69,131.53 : x
  2. Step 2: Convert to fraction form
    92,939.11/139,266.73 = 69,131.53/x
  3. Step 3: Cross multiply
    92,939.11x = 139,266.73 × 69,131.53
  4. Step 4: Simplify right side
    92,939.11x = 9,627,722,123.00
  5. Step 5: Solve for x
    x = 9,627,722,123.00/92,939.11
  6. Step 6: Final answer
    x = 103,591.72

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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.