Home / 205,108.40-307,331.40-116,097.20

Finding the Fourth Proportional to 205,108.40, 307,331.40 and 116,097.20

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Solution

The fourth proportional to 205,108.40, 307,331.40 and 116,097.20 is: 173,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,108.40 : 307,331.40 = 116,097.20 : x
  2. Step 2: Convert to fraction form
    205,108.40/307,331.40 = 116,097.20/x
  3. Step 3: Cross multiply
    205,108.40x = 307,331.40 × 116,097.20
  4. Step 4: Simplify right side
    205,108.40x = 35,680,315,012.08
  5. Step 5: Solve for x
    x = 35,680,315,012.08/205,108.40
  6. Step 6: Final answer
    x = 173,958.33

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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.