Home / 121,383.90-182,171.10-84,205.56

Finding the Fourth Proportional to 121,383.90, 182,171.10 and 84,205.56

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Solution

The fourth proportional to 121,383.90, 182,171.10 and 84,205.56 is: 126,374.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,383.90 : 182,171.10 = 84,205.56 : x
  2. Step 2: Convert to fraction form
    121,383.90/182,171.10 = 84,205.56/x
  3. Step 3: Cross multiply
    121,383.90x = 182,171.10 × 84,205.56
  4. Step 4: Simplify right side
    121,383.90x = 15,339,819,491.32
  5. Step 5: Solve for x
    x = 15,339,819,491.32/121,383.90
  6. Step 6: Final answer
    x = 126,374.42

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1.5x scale

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.