Home / 129,968.96-179,360.16-73,380.80

Finding the Fourth Proportional to 129,968.96, 179,360.16 and 73,380.80

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Solution

The fourth proportional to 129,968.96, 179,360.16 and 73,380.80 is: 101,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968.96 : 179,360.16 = 73,380.80 : x
  2. Step 2: Convert to fraction form
    129,968.96/179,360.16 = 73,380.80/x
  3. Step 3: Cross multiply
    129,968.96x = 179,360.16 × 73,380.80
  4. Step 4: Simplify right side
    129,968.96x = 13,161,592,028.93
  5. Step 5: Solve for x
    x = 13,161,592,028.93/129,968.96
  6. Step 6: Final answer
    x = 101,267.20

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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.