Home / 150,818.30-208,106.11-87,143.79

Finding the Fourth Proportional to 150,818.30, 208,106.11 and 87,143.79

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Solution

The fourth proportional to 150,818.30, 208,106.11 and 87,143.79 is: 120,245.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,818.30 : 208,106.11 = 87,143.79 : x
  2. Step 2: Convert to fraction form
    150,818.30/208,106.11 = 87,143.79/x
  3. Step 3: Cross multiply
    150,818.30x = 208,106.11 × 87,143.79
  4. Step 4: Simplify right side
    150,818.30x = 18,135,155,147.56
  5. Step 5: Solve for x
    x = 18,135,155,147.56/150,818.30
  6. Step 6: Final answer
    x = 120,245.06

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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.