Home / 129,923.52-179,240.22-87,408.24

Finding the Fourth Proportional to 129,923.52, 179,240.22 and 87,408.24

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Solution

The fourth proportional to 129,923.52, 179,240.22 and 87,408.24 is: 120,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923.52 : 179,240.22 = 87,408.24 : x
  2. Step 2: Convert to fraction form
    129,923.52/179,240.22 = 87,408.24/x
  3. Step 3: Cross multiply
    129,923.52x = 179,240.22 × 87,408.24
  4. Step 4: Simplify right side
    129,923.52x = 15,667,072,167.41
  5. Step 5: Solve for x
    x = 15,667,072,167.41/129,923.52
  6. Step 6: Final answer
    x = 120,586.88

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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.