Home / 123,979.75-185,899.62-113,400.13

Finding the Fourth Proportional to 123,979.75, 185,899.62 and 113,400.13

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Solution

The fourth proportional to 123,979.75, 185,899.62 and 113,400.13 is: 170,036.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,979.75 : 185,899.62 = 113,400.13 : x
  2. Step 2: Convert to fraction form
    123,979.75/185,899.62 = 113,400.13/x
  3. Step 3: Cross multiply
    123,979.75x = 185,899.62 × 113,400.13
  4. Step 4: Simplify right side
    123,979.75x = 21,081,041,539.70
  5. Step 5: Solve for x
    x = 21,081,041,539.70/123,979.75
  6. Step 6: Final answer
    x = 170,036.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.