Home / 122,116.55-168,515.94-68,398.82

Finding the Fourth Proportional to 122,116.55, 168,515.94 and 68,398.82

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Solution

The fourth proportional to 122,116.55, 168,515.94 and 68,398.82 is: 94,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.55 : 168,515.94 = 68,398.82 : x
  2. Step 2: Convert to fraction form
    122,116.55/168,515.94 = 68,398.82/x
  3. Step 3: Cross multiply
    122,116.55x = 168,515.94 × 68,398.82
  4. Step 4: Simplify right side
    122,116.55x = 11,526,290,604.61
  5. Step 5: Solve for x
    x = 11,526,290,604.61/122,116.55
  6. Step 6: Final answer
    x = 94,387.62

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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.