Home / 106,422.80-146,863.49-61,103.75

Finding the Fourth Proportional to 106,422.80, 146,863.49 and 61,103.75

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Solution

The fourth proportional to 106,422.80, 146,863.49 and 61,103.75 is: 84,323.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,422.80 : 146,863.49 = 61,103.75 : x
  2. Step 2: Convert to fraction form
    106,422.80/146,863.49 = 61,103.75/x
  3. Step 3: Cross multiply
    106,422.80x = 146,863.49 × 61,103.75
  4. Step 4: Simplify right side
    106,422.80x = 8,973,908,937.25
  5. Step 5: Solve for x
    x = 8,973,908,937.25/106,422.80
  6. Step 6: Final answer
    x = 84,323.18

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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.