Home / 135,940.95-187,755.57-90,544.23

Finding the Fourth Proportional to 135,940.95, 187,755.57 and 90,544.23

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Solution

The fourth proportional to 135,940.95, 187,755.57 and 90,544.23 is: 125,055.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,940.95 : 187,755.57 = 90,544.23 : x
  2. Step 2: Convert to fraction form
    135,940.95/187,755.57 = 90,544.23/x
  3. Step 3: Cross multiply
    135,940.95x = 187,755.57 × 90,544.23
  4. Step 4: Simplify right side
    135,940.95x = 17,000,183,513.86
  5. Step 5: Solve for x
    x = 17,000,183,513.86/135,940.95
  6. Step 6: Final answer
    x = 125,055.65

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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.