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Finding the Fourth Proportional to 122,363.71, 168,863.59 and 91,682.38

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Solution

The fourth proportional to 122,363.71, 168,863.59 and 91,682.38 is: 126,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,363.71 : 168,863.59 = 91,682.38 : x
  2. Step 2: Convert to fraction form
    122,363.71/168,863.59 = 91,682.38/x
  3. Step 3: Cross multiply
    122,363.71x = 168,863.59 × 91,682.38
  4. Step 4: Simplify right side
    122,363.71x = 15,481,815,636.51
  5. Step 5: Solve for x
    x = 15,481,815,636.51/122,363.71
  6. Step 6: Final answer
    x = 126,522.93

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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.