Home / 109,742.67-151,449.75-61,996.41

Finding the Fourth Proportional to 109,742.67, 151,449.75 and 61,996.41

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Solution

The fourth proportional to 109,742.67, 151,449.75 and 61,996.41 is: 85,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,742.67 : 151,449.75 = 61,996.41 : x
  2. Step 2: Convert to fraction form
    109,742.67/151,449.75 = 61,996.41/x
  3. Step 3: Cross multiply
    109,742.67x = 151,449.75 × 61,996.41
  4. Step 4: Simplify right side
    109,742.67x = 9,389,340,795.40
  5. Step 5: Solve for x
    x = 9,389,340,795.40/109,742.67
  6. Step 6: Final answer
    x = 85,557.79

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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.