Home / 205,080.12-307,618.36-64,838.80

Finding the Fourth Proportional to 205,080.12, 307,618.36 and 64,838.80

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Solution

The fourth proportional to 205,080.12, 307,618.36 and 64,838.80 is: 97,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,080.12 : 307,618.36 = 64,838.80 : x
  2. Step 2: Convert to fraction form
    205,080.12/307,618.36 = 64,838.80/x
  3. Step 3: Cross multiply
    205,080.12x = 307,618.36 × 64,838.80
  4. Step 4: Simplify right side
    205,080.12x = 19,945,605,320.37
  5. Step 5: Solve for x
    x = 19,945,605,320.37/205,080.12
  6. Step 6: Final answer
    x = 97,257.62

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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.