Home / 121,175.75-167,198.09-73,401.35

Finding the Fourth Proportional to 121,175.75, 167,198.09 and 73,401.35

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Solution

The fourth proportional to 121,175.75, 167,198.09 and 73,401.35 is: 101,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,175.75 : 167,198.09 = 73,401.35 : x
  2. Step 2: Convert to fraction form
    121,175.75/167,198.09 = 73,401.35/x
  3. Step 3: Cross multiply
    121,175.75x = 167,198.09 × 73,401.35
  4. Step 4: Simplify right side
    121,175.75x = 12,272,564,320.42
  5. Step 5: Solve for x
    x = 12,272,564,320.42/121,175.75
  6. Step 6: Final answer
    x = 101,279.05

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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.