Home / 120,766.10-181,177.61-118,757.84

Finding the Fourth Proportional to 120,766.10, 181,177.61 and 118,757.84

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Solution

The fourth proportional to 120,766.10, 181,177.61 and 118,757.84 is: 178,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,766.10 : 181,177.61 = 118,757.84 : x
  2. Step 2: Convert to fraction form
    120,766.10/181,177.61 = 118,757.84/x
  3. Step 3: Cross multiply
    120,766.10x = 181,177.61 × 118,757.84
  4. Step 4: Simplify right side
    120,766.10x = 21,516,260,120.29
  5. Step 5: Solve for x
    x = 21,516,260,120.29/120,766.10
  6. Step 6: Final answer
    x = 178,164.74

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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.