Home / 121,815.70-182,723.55-110,929.30

Finding the Fourth Proportional to 121,815.70, 182,723.55 and 110,929.30

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Solution

The fourth proportional to 121,815.70, 182,723.55 and 110,929.30 is: 166,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,815.70 : 182,723.55 = 110,929.30 : x
  2. Step 2: Convert to fraction form
    121,815.70/182,723.55 = 110,929.30/x
  3. Step 3: Cross multiply
    121,815.70x = 182,723.55 × 110,929.30
  4. Step 4: Simplify right side
    121,815.70x = 20,269,395,495.02
  5. Step 5: Solve for x
    x = 20,269,395,495.02/121,815.70
  6. Step 6: Final answer
    x = 166,393.95

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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.