Home / 91,236.96-137,557.28-89,604

Finding the Fourth Proportional to 91,236.96, 137,557.28 and 89,604

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Solution

The fourth proportional to 91,236.96, 137,557.28 and 89,604 is: 135,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,236.96 : 137,557.28 = 89,604 : x
  2. Step 2: Convert to fraction form
    91,236.96/137,557.28 = 89,604/x
  3. Step 3: Cross multiply
    91,236.96x = 137,557.28 × 89,604
  4. Step 4: Simplify right side
    91,236.96x = 12,325,682,517.12
  5. Step 5: Solve for x
    x = 12,325,682,517.12/91,236.96
  6. Step 6: Final answer
    x = 135,095.28

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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.