Home / 121,610.40-182,415.60-108,925.80

Finding the Fourth Proportional to 121,610.40, 182,415.60 and 108,925.80

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Solution

The fourth proportional to 121,610.40, 182,415.60 and 108,925.80 is: 163,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,610.40 : 182,415.60 = 108,925.80 : x
  2. Step 2: Convert to fraction form
    121,610.40/182,415.60 = 108,925.80/x
  3. Step 3: Cross multiply
    121,610.40x = 182,415.60 × 108,925.80
  4. Step 4: Simplify right side
    121,610.40x = 19,869,765,162.48
  5. Step 5: Solve for x
    x = 19,869,765,162.48/121,610.40
  6. Step 6: Final answer
    x = 163,388.70

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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.