Home / 209,116.98-313,254.47-96,642.30

Finding the Fourth Proportional to 209,116.98, 313,254.47 and 96,642.30

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Solution

The fourth proportional to 209,116.98, 313,254.47 and 96,642.30 is: 144,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,116.98 : 313,254.47 = 96,642.30 : x
  2. Step 2: Convert to fraction form
    209,116.98/313,254.47 = 96,642.30/x
  3. Step 3: Cross multiply
    209,116.98x = 313,254.47 × 96,642.30
  4. Step 4: Simplify right side
    209,116.98x = 30,273,631,982.87
  5. Step 5: Solve for x
    x = 30,273,631,982.87/209,116.98
  6. Step 6: Final answer
    x = 144,768.88

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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.