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Finding the Fourth Proportional to 123,901.68, 170,983.80 and 67,313.46

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Solution

The fourth proportional to 123,901.68, 170,983.80 and 67,313.46 is: 92,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,901.68 : 170,983.80 = 67,313.46 : x
  2. Step 2: Convert to fraction form
    123,901.68/170,983.80 = 67,313.46/x
  3. Step 3: Cross multiply
    123,901.68x = 170,983.80 × 67,313.46
  4. Step 4: Simplify right side
    123,901.68x = 11,509,511,181.95
  5. Step 5: Solve for x
    x = 11,509,511,181.95/123,901.68
  6. Step 6: Final answer
    x = 92,892.29

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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.