Home / 199,711.10-299,659.27-87,376.52

Finding the Fourth Proportional to 199,711.10, 299,659.27 and 87,376.52

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Solution

The fourth proportional to 199,711.10, 299,659.27 and 87,376.52 is: 131,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,711.10 : 299,659.27 = 87,376.52 : x
  2. Step 2: Convert to fraction form
    199,711.10/299,659.27 = 87,376.52/x
  3. Step 3: Cross multiply
    199,711.10x = 299,659.27 × 87,376.52
  4. Step 4: Simplify right side
    199,711.10x = 26,183,184,729.05
  5. Step 5: Solve for x
    x = 26,183,184,729.05/199,711.10
  6. Step 6: Final answer
    x = 131,105.31

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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.