Home / 205,111.14-307,803.99-71,992.02

Finding the Fourth Proportional to 205,111.14, 307,803.99 and 71,992.02

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Solution

The fourth proportional to 205,111.14, 307,803.99 and 71,992.02 is: 108,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,111.14 : 307,803.99 = 71,992.02 : x
  2. Step 2: Convert to fraction form
    205,111.14/307,803.99 = 71,992.02/x
  3. Step 3: Cross multiply
    205,111.14x = 307,803.99 × 71,992.02
  4. Step 4: Simplify right side
    205,111.14x = 22,159,431,004.16
  5. Step 5: Solve for x
    x = 22,159,431,004.16/205,111.14
  6. Step 6: Final answer
    x = 108,036.21

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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.