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Finding the Fourth Proportional to 123,267.63, 170,111.99 and 68,076.78

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Solution

The fourth proportional to 123,267.63, 170,111.99 and 68,076.78 is: 93,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,267.63 : 170,111.99 = 68,076.78 : x
  2. Step 2: Convert to fraction form
    123,267.63/170,111.99 = 68,076.78/x
  3. Step 3: Cross multiply
    123,267.63x = 170,111.99 × 68,076.78
  4. Step 4: Simplify right side
    123,267.63x = 11,580,676,624.81
  5. Step 5: Solve for x
    x = 11,580,676,624.81/123,267.63
  6. Step 6: Final answer
    x = 93,947.43

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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.