Home / 135,572.13-187,100.74-75,161.72

Finding the Fourth Proportional to 135,572.13, 187,100.74 and 75,161.72

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Solution

The fourth proportional to 135,572.13, 187,100.74 and 75,161.72 is: 103,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,572.13 : 187,100.74 = 75,161.72 : x
  2. Step 2: Convert to fraction form
    135,572.13/187,100.74 = 75,161.72/x
  3. Step 3: Cross multiply
    135,572.13x = 187,100.74 × 75,161.72
  4. Step 4: Simplify right side
    135,572.13x = 14,062,813,570.59
  5. Step 5: Solve for x
    x = 14,062,813,570.59/135,572.13
  6. Step 6: Final answer
    x = 103,729.38

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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.