Home / 291,155.12-436,732.90-80,793.26

Finding the Fourth Proportional to 291,155.12, 436,732.90 and 80,793.26

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Solution

The fourth proportional to 291,155.12, 436,732.90 and 80,793.26 is: 121,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,155.12 : 436,732.90 = 80,793.26 : x
  2. Step 2: Convert to fraction form
    291,155.12/436,732.90 = 80,793.26/x
  3. Step 3: Cross multiply
    291,155.12x = 436,732.90 × 80,793.26
  4. Step 4: Simplify right side
    291,155.12x = 35,285,074,740.25
  5. Step 5: Solve for x
    x = 35,285,074,740.25/291,155.12
  6. Step 6: Final answer
    x = 121,189.95

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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.