Home / 84,719.72-126,829.92-74,210.30

Finding the Fourth Proportional to 84,719.72, 126,829.92 and 74,210.30

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Solution

The fourth proportional to 84,719.72, 126,829.92 and 74,210.30 is: 111,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,719.72 : 126,829.92 = 74,210.30 : x
  2. Step 2: Convert to fraction form
    84,719.72/126,829.92 = 74,210.30/x
  3. Step 3: Cross multiply
    84,719.72x = 126,829.92 × 74,210.30
  4. Step 4: Simplify right side
    84,719.72x = 9,412,086,412.18
  5. Step 5: Solve for x
    x = 9,412,086,412.18/84,719.72
  6. Step 6: Final answer
    x = 111,096.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.