Home / 121,352.40-182,028.60-108,667.80

Finding the Fourth Proportional to 121,352.40, 182,028.60 and 108,667.80

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Solution

The fourth proportional to 121,352.40, 182,028.60 and 108,667.80 is: 163,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,352.40 : 182,028.60 = 108,667.80 : x
  2. Step 2: Convert to fraction form
    121,352.40/182,028.60 = 108,667.80/x
  3. Step 3: Cross multiply
    121,352.40x = 182,028.60 × 108,667.80
  4. Step 4: Simplify right side
    121,352.40x = 19,780,647,499.08
  5. Step 5: Solve for x
    x = 19,780,647,499.08/121,352.40
  6. Step 6: Final answer
    x = 163,001.70

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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.