Home / 122,581.80-168,987.78-82,223.40

Finding the Fourth Proportional to 122,581.80, 168,987.78 and 82,223.40

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Solution

The fourth proportional to 122,581.80, 168,987.78 and 82,223.40 is: 113,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,581.80 : 168,987.78 = 82,223.40 : x
  2. Step 2: Convert to fraction form
    122,581.80/168,987.78 = 82,223.40/x
  3. Step 3: Cross multiply
    122,581.80x = 168,987.78 × 82,223.40
  4. Step 4: Simplify right side
    122,581.80x = 13,894,749,830.05
  5. Step 5: Solve for x
    x = 13,894,749,830.05/122,581.80
  6. Step 6: Final answer
    x = 113,350.84

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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.