Home / 102,687.93-141,617.24-85,517.15

Finding the Fourth Proportional to 102,687.93, 141,617.24 and 85,517.15

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Solution

The fourth proportional to 102,687.93, 141,617.24 and 85,517.15 is: 117,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,687.93 : 141,617.24 = 85,517.15 : x
  2. Step 2: Convert to fraction form
    102,687.93/141,617.24 = 85,517.15/x
  3. Step 3: Cross multiply
    102,687.93x = 141,617.24 × 85,517.15
  4. Step 4: Simplify right side
    102,687.93x = 12,110,702,755.67
  5. Step 5: Solve for x
    x = 12,110,702,755.67/102,687.93
  6. Step 6: Final answer
    x = 117,936.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.