Home / 121,052.20-167,008.96-75,786.72

Finding the Fourth Proportional to 121,052.20, 167,008.96 and 75,786.72

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Solution

The fourth proportional to 121,052.20, 167,008.96 and 75,786.72 is: 104,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,052.20 : 167,008.96 = 75,786.72 : x
  2. Step 2: Convert to fraction form
    121,052.20/167,008.96 = 75,786.72/x
  3. Step 3: Cross multiply
    121,052.20x = 167,008.96 × 75,786.72
  4. Step 4: Simplify right side
    121,052.20x = 12,657,061,289.01
  5. Step 5: Solve for x
    x = 12,657,061,289.01/121,052.20
  6. Step 6: Final answer
    x = 104,558.71

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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.