Home / 123,518.35-170,455.92-66,929.73

Finding the Fourth Proportional to 123,518.35, 170,455.92 and 66,929.73

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Solution

The fourth proportional to 123,518.35, 170,455.92 and 66,929.73 is: 92,363.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,518.35 : 170,455.92 = 66,929.73 : x
  2. Step 2: Convert to fraction form
    123,518.35/170,455.92 = 66,929.73/x
  3. Step 3: Cross multiply
    123,518.35x = 170,455.92 × 66,929.73
  4. Step 4: Simplify right side
    123,518.35x = 11,408,568,702.50
  5. Step 5: Solve for x
    x = 11,408,568,702.50/123,518.35
  6. Step 6: Final answer
    x = 92,363.35

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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.