Home / 147,910.10-222,004.35-77,839.70

Finding the Fourth Proportional to 147,910.10, 222,004.35 and 77,839.70

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Solution

The fourth proportional to 147,910.10, 222,004.35 and 77,839.70 is: 116,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,910.10 : 222,004.35 = 77,839.70 : x
  2. Step 2: Convert to fraction form
    147,910.10/222,004.35 = 77,839.70/x
  3. Step 3: Cross multiply
    147,910.10x = 222,004.35 × 77,839.70
  4. Step 4: Simplify right side
    147,910.10x = 17,280,752,002.70
  5. Step 5: Solve for x
    x = 17,280,752,002.70/147,910.10
  6. Step 6: Final answer
    x = 116,832.81

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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.