Home / 112,725.74-155,561.27-61,738.49

Finding the Fourth Proportional to 112,725.74, 155,561.27 and 61,738.49

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Solution

The fourth proportional to 112,725.74, 155,561.27 and 61,738.49 is: 85,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,725.74 : 155,561.27 = 61,738.49 : x
  2. Step 2: Convert to fraction form
    112,725.74/155,561.27 = 61,738.49/x
  3. Step 3: Cross multiply
    112,725.74x = 155,561.27 × 61,738.49
  4. Step 4: Simplify right side
    112,725.74x = 9,604,116,825.78
  5. Step 5: Solve for x
    x = 9,604,116,825.78/112,725.74
  6. Step 6: Final answer
    x = 85,198.97

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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.