Home / 112,865.85-155,754.01-61,877.97

Finding the Fourth Proportional to 112,865.85, 155,754.01 and 61,877.97

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Solution

The fourth proportional to 112,865.85, 155,754.01 and 61,877.97 is: 85,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,865.85 : 155,754.01 = 61,877.97 : x
  2. Step 2: Convert to fraction form
    112,865.85/155,754.01 = 61,877.97/x
  3. Step 3: Cross multiply
    112,865.85x = 155,754.01 × 61,877.97
  4. Step 4: Simplify right side
    112,865.85x = 9,637,741,958.16
  5. Step 5: Solve for x
    x = 9,637,741,958.16/112,865.85
  6. Step 6: Final answer
    x = 85,391.13

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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.