Home / 121,443.11-167,621.54-82,744.94

Finding the Fourth Proportional to 121,443.11, 167,621.54 and 82,744.94

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Solution

The fourth proportional to 121,443.11, 167,621.54 and 82,744.94 is: 114,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,443.11 : 167,621.54 = 82,744.94 : x
  2. Step 2: Convert to fraction form
    121,443.11/167,621.54 = 82,744.94/x
  3. Step 3: Cross multiply
    121,443.11x = 167,621.54 × 82,744.94
  4. Step 4: Simplify right side
    121,443.11x = 13,869,834,624.42
  5. Step 5: Solve for x
    x = 13,869,834,624.42/121,443.11
  6. Step 6: Final answer
    x = 114,208.49

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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.