Home / 381,155.10-571,995.45-131,837.10

Finding the Fourth Proportional to 381,155.10, 571,995.45 and 131,837.10

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Solution

The fourth proportional to 381,155.10, 571,995.45 and 131,837.10 is: 197,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,155.10 : 571,995.45 = 131,837.10 : x
  2. Step 2: Convert to fraction form
    381,155.10/571,995.45 = 131,837.10/x
  3. Step 3: Cross multiply
    381,155.10x = 571,995.45 × 131,837.10
  4. Step 4: Simplify right side
    381,155.10x = 75,410,221,341.20
  5. Step 5: Solve for x
    x = 75,410,221,341.20/381,155.10
  6. Step 6: Final answer
    x = 197,846.55

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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.