Home / 135,620.14-187,155.45-75,189.22

Finding the Fourth Proportional to 135,620.14, 187,155.45 and 75,189.22

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Solution

The fourth proportional to 135,620.14, 187,155.45 and 75,189.22 is: 103,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,620.14 : 187,155.45 = 75,189.22 : x
  2. Step 2: Convert to fraction form
    135,620.14/187,155.45 = 75,189.22/x
  3. Step 3: Cross multiply
    135,620.14x = 187,155.45 × 75,189.22
  4. Step 4: Simplify right side
    135,620.14x = 14,072,072,304.25
  5. Step 5: Solve for x
    x = 14,072,072,304.25/135,620.14
  6. Step 6: Final answer
    x = 103,760.93

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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.