Home / 123,408.24-170,303.52-66,819.60

Finding the Fourth Proportional to 123,408.24, 170,303.52 and 66,819.60

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Solution

The fourth proportional to 123,408.24, 170,303.52 and 66,819.60 is: 92,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,408.24 : 170,303.52 = 66,819.60 : x
  2. Step 2: Convert to fraction form
    123,408.24/170,303.52 = 66,819.60/x
  3. Step 3: Cross multiply
    123,408.24x = 170,303.52 × 66,819.60
  4. Step 4: Simplify right side
    123,408.24x = 11,379,613,084.99
  5. Step 5: Solve for x
    x = 11,379,613,084.99/123,408.24
  6. Step 6: Final answer
    x = 92,211.13

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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.