Home / 91,572.14-137,982.18-75,296.76

Finding the Fourth Proportional to 91,572.14, 137,982.18 and 75,296.76

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Solution

The fourth proportional to 91,572.14, 137,982.18 and 75,296.76 is: 113,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,572.14 : 137,982.18 = 75,296.76 : x
  2. Step 2: Convert to fraction form
    91,572.14/137,982.18 = 75,296.76/x
  3. Step 3: Cross multiply
    91,572.14x = 137,982.18 × 75,296.76
  4. Step 4: Simplify right side
    91,572.14x = 10,389,611,091.74
  5. Step 5: Solve for x
    x = 10,389,611,091.74/91,572.14
  6. Step 6: Final answer
    x = 113,458.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.