Home / 123,535.68-170,474.67-66,945.84

Finding the Fourth Proportional to 123,535.68, 170,474.67 and 66,945.84

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Solution

The fourth proportional to 123,535.68, 170,474.67 and 66,945.84 is: 92,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,535.68 : 170,474.67 = 66,945.84 : x
  2. Step 2: Convert to fraction form
    123,535.68/170,474.67 = 66,945.84/x
  3. Step 3: Cross multiply
    123,535.68x = 170,474.67 × 66,945.84
  4. Step 4: Simplify right side
    123,535.68x = 11,412,569,981.87
  5. Step 5: Solve for x
    x = 11,412,569,981.87/123,535.68
  6. Step 6: Final answer
    x = 92,382.78

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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.