Home / 124,658.40-172,168.56-82,408.80

Finding the Fourth Proportional to 124,658.40, 172,168.56 and 82,408.80

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Solution

The fourth proportional to 124,658.40, 172,168.56 and 82,408.80 is: 113,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,658.40 : 172,168.56 = 82,408.80 : x
  2. Step 2: Convert to fraction form
    124,658.40/172,168.56 = 82,408.80/x
  3. Step 3: Cross multiply
    124,658.40x = 172,168.56 × 82,408.80
  4. Step 4: Simplify right side
    124,658.40x = 14,188,204,427.33
  5. Step 5: Solve for x
    x = 14,188,204,427.33/124,658.40
  6. Step 6: Final answer
    x = 113,816.67

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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.