Home / 205,983.10-308,974.65-65,746.30

Finding the Fourth Proportional to 205,983.10, 308,974.65 and 65,746.30

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Solution

The fourth proportional to 205,983.10, 308,974.65 and 65,746.30 is: 98,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,983.10 : 308,974.65 = 65,746.30 : x
  2. Step 2: Convert to fraction form
    205,983.10/308,974.65 = 65,746.30/x
  3. Step 3: Cross multiply
    205,983.10x = 308,974.65 × 65,746.30
  4. Step 4: Simplify right side
    205,983.10x = 20,313,940,031.30
  5. Step 5: Solve for x
    x = 20,313,940,031.30/205,983.10
  6. Step 6: Final answer
    x = 98,619.45

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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.