Home / 122,311.98-168,722.18-76,973.04

Finding the Fourth Proportional to 122,311.98, 168,722.18 and 76,973.04

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Solution

The fourth proportional to 122,311.98, 168,722.18 and 76,973.04 is: 106,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,311.98 : 168,722.18 = 76,973.04 : x
  2. Step 2: Convert to fraction form
    122,311.98/168,722.18 = 76,973.04/x
  3. Step 3: Cross multiply
    122,311.98x = 168,722.18 × 76,973.04
  4. Step 4: Simplify right side
    122,311.98x = 12,987,059,110.03
  5. Step 5: Solve for x
    x = 12,987,059,110.03/122,311.98
  6. Step 6: Final answer
    x = 106,179.78

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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.