Home / 91,954.75-137,127.43-91,113.96

Finding the Fourth Proportional to 91,954.75, 137,127.43 and 91,113.96

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Solution

The fourth proportional to 91,954.75, 137,127.43 and 91,113.96 is: 135,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,954.75 : 137,127.43 = 91,113.96 : x
  2. Step 2: Convert to fraction form
    91,954.75/137,127.43 = 91,113.96/x
  3. Step 3: Cross multiply
    91,954.75x = 137,127.43 × 91,113.96
  4. Step 4: Simplify right side
    91,954.75x = 12,494,223,171.92
  5. Step 5: Solve for x
    x = 12,494,223,171.92/91,954.75
  6. Step 6: Final answer
    x = 135,873.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.