Home / 123,519.08-170,456.18-66,930.45

Finding the Fourth Proportional to 123,519.08, 170,456.18 and 66,930.45

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Solution

The fourth proportional to 123,519.08, 170,456.18 and 66,930.45 is: 92,363.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,519.08 : 170,456.18 = 66,930.45 : x
  2. Step 2: Convert to fraction form
    123,519.08/170,456.18 = 66,930.45/x
  3. Step 3: Cross multiply
    123,519.08x = 170,456.18 × 66,930.45
  4. Step 4: Simplify right side
    123,519.08x = 11,408,708,498.03
  5. Step 5: Solve for x
    x = 11,408,708,498.03/123,519.08
  6. Step 6: Final answer
    x = 92,363.94

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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.