Home / 124,578.24-171,912.60-70,855.68

Finding the Fourth Proportional to 124,578.24, 171,912.60 and 70,855.68

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Solution

The fourth proportional to 124,578.24, 171,912.60 and 70,855.68 is: 97,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,578.24 : 171,912.60 = 70,855.68 : x
  2. Step 2: Convert to fraction form
    124,578.24/171,912.60 = 70,855.68/x
  3. Step 3: Cross multiply
    124,578.24x = 171,912.60 × 70,855.68
  4. Step 4: Simplify right side
    124,578.24x = 12,180,984,173.57
  5. Step 5: Solve for x
    x = 12,180,984,173.57/124,578.24
  6. Step 6: Final answer
    x = 97,777.78

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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.