Home / 89,516.26-134,015.19-67,422.70

Finding the Fourth Proportional to 89,516.26, 134,015.19 and 67,422.70

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Solution

The fourth proportional to 89,516.26, 134,015.19 and 67,422.70 is: 100,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,516.26 : 134,015.19 = 67,422.70 : x
  2. Step 2: Convert to fraction form
    89,516.26/134,015.19 = 67,422.70/x
  3. Step 3: Cross multiply
    89,516.26x = 134,015.19 × 67,422.70
  4. Step 4: Simplify right side
    89,516.26x = 9,035,665,950.81
  5. Step 5: Solve for x
    x = 9,035,665,950.81/89,516.26
  6. Step 6: Final answer
    x = 100,938.82

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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.