Home / 123,568.14-170,523.87-66,979.50

Finding the Fourth Proportional to 123,568.14, 170,523.87 and 66,979.50

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Solution

The fourth proportional to 123,568.14, 170,523.87 and 66,979.50 is: 92,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,568.14 : 170,523.87 = 66,979.50 : x
  2. Step 2: Convert to fraction form
    123,568.14/170,523.87 = 66,979.50/x
  3. Step 3: Cross multiply
    123,568.14x = 170,523.87 × 66,979.50
  4. Step 4: Simplify right side
    123,568.14x = 11,421,603,550.67
  5. Step 5: Solve for x
    x = 11,421,603,550.67/123,568.14
  6. Step 6: Final answer
    x = 92,431.62

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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.