Home / 102,817.66-141,572.94-89,999.11

Finding the Fourth Proportional to 102,817.66, 141,572.94 and 89,999.11

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Solution

The fourth proportional to 102,817.66, 141,572.94 and 89,999.11 is: 123,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,817.66 : 141,572.94 = 89,999.11 : x
  2. Step 2: Convert to fraction form
    102,817.66/141,572.94 = 89,999.11/x
  3. Step 3: Cross multiply
    102,817.66x = 141,572.94 × 89,999.11
  4. Step 4: Simplify right side
    102,817.66x = 12,741,438,150.09
  5. Step 5: Solve for x
    x = 12,741,438,150.09/102,817.66
  6. Step 6: Final answer
    x = 123,922.66

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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.