Home / 136,121.52-187,850.94-75,694.70

Finding the Fourth Proportional to 136,121.52, 187,850.94 and 75,694.70

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Solution

The fourth proportional to 136,121.52, 187,850.94 and 75,694.70 is: 104,460.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,121.52 : 187,850.94 = 75,694.70 : x
  2. Step 2: Convert to fraction form
    136,121.52/187,850.94 = 75,694.70/x
  3. Step 3: Cross multiply
    136,121.52x = 187,850.94 × 75,694.70
  4. Step 4: Simplify right side
    136,121.52x = 14,219,320,548.02
  5. Step 5: Solve for x
    x = 14,219,320,548.02/136,121.52
  6. Step 6: Final answer
    x = 104,460.49

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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.