Home / 120,050.10-165,680.71-66,338.73

Finding the Fourth Proportional to 120,050.10, 165,680.71 and 66,338.73

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Solution

The fourth proportional to 120,050.10, 165,680.71 and 66,338.73 is: 91,553.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,050.10 : 165,680.71 = 66,338.73 : x
  2. Step 2: Convert to fraction form
    120,050.10/165,680.71 = 66,338.73/x
  3. Step 3: Cross multiply
    120,050.10x = 165,680.71 × 66,338.73
  4. Step 4: Simplify right side
    120,050.10x = 10,991,047,721.05
  5. Step 5: Solve for x
    x = 10,991,047,721.05/120,050.10
  6. Step 6: Final answer
    x = 91,553.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.