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Finding the Fourth Proportional to 108,910.39, 150,278.70 and 68,069.70

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Solution

The fourth proportional to 108,910.39, 150,278.70 and 68,069.70 is: 93,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,910.39 : 150,278.70 = 68,069.70 : x
  2. Step 2: Convert to fraction form
    108,910.39/150,278.70 = 68,069.70/x
  3. Step 3: Cross multiply
    108,910.39x = 150,278.70 × 68,069.70
  4. Step 4: Simplify right side
    108,910.39x = 10,229,425,649.69
  5. Step 5: Solve for x
    x = 10,229,425,649.69/108,910.39
  6. Step 6: Final answer
    x = 93,925.16

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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.