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Finding the Fourth Proportional to 123,518.66, 170,454.34 and 66,930.03

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Solution

The fourth proportional to 123,518.66, 170,454.34 and 66,930.03 is: 92,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,518.66 : 170,454.34 = 66,930.03 : x
  2. Step 2: Convert to fraction form
    123,518.66/170,454.34 = 66,930.03/x
  3. Step 3: Cross multiply
    123,518.66x = 170,454.34 × 66,930.03
  4. Step 4: Simplify right side
    123,518.66x = 11,408,514,610.24
  5. Step 5: Solve for x
    x = 11,408,514,610.24/123,518.66
  6. Step 6: Final answer
    x = 92,362.68

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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.