Home / 91,617.85-137,268.96-71,619.58

Finding the Fourth Proportional to 91,617.85, 137,268.96 and 71,619.58

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Solution

The fourth proportional to 91,617.85, 137,268.96 and 71,619.58 is: 107,306.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,617.85 : 137,268.96 = 71,619.58 : x
  2. Step 2: Convert to fraction form
    91,617.85/137,268.96 = 71,619.58/x
  3. Step 3: Cross multiply
    91,617.85x = 137,268.96 × 71,619.58
  4. Step 4: Simplify right side
    91,617.85x = 9,831,145,262.24
  5. Step 5: Solve for x
    x = 9,831,145,262.24/91,617.85
  6. Step 6: Final answer
    x = 107,306.00

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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.