Home / 120,956.90-166,924.37-72,542.18

Finding the Fourth Proportional to 120,956.90, 166,924.37 and 72,542.18

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Solution

The fourth proportional to 120,956.90, 166,924.37 and 72,542.18 is: 100,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,956.90 : 166,924.37 = 72,542.18 : x
  2. Step 2: Convert to fraction form
    120,956.90/166,924.37 = 72,542.18/x
  3. Step 3: Cross multiply
    120,956.90x = 166,924.37 × 72,542.18
  4. Step 4: Simplify right side
    120,956.90x = 12,109,058,089.57
  5. Step 5: Solve for x
    x = 12,109,058,089.57/120,956.90
  6. Step 6: Final answer
    x = 100,110.52

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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.