Home / 123,770.11-170,803.08-67,181.49

Finding the Fourth Proportional to 123,770.11, 170,803.08 and 67,181.49

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Solution

The fourth proportional to 123,770.11, 170,803.08 and 67,181.49 is: 92,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,770.11 : 170,803.08 = 67,181.49 : x
  2. Step 2: Convert to fraction form
    123,770.11/170,803.08 = 67,181.49/x
  3. Step 3: Cross multiply
    123,770.11x = 170,803.08 × 67,181.49
  4. Step 4: Simplify right side
    123,770.11x = 11,474,805,410.99
  5. Step 5: Solve for x
    x = 11,474,805,410.99/123,770.11
  6. Step 6: Final answer
    x = 92,710.63

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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.