Home / 205,141.23-307,849.23-72,021.87

Finding the Fourth Proportional to 205,141.23, 307,849.23 and 72,021.87

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Solution

The fourth proportional to 205,141.23, 307,849.23 and 72,021.87 is: 108,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,141.23 : 307,849.23 = 72,021.87 : x
  2. Step 2: Convert to fraction form
    205,141.23/307,849.23 = 72,021.87/x
  3. Step 3: Cross multiply
    205,141.23x = 307,849.23 × 72,021.87
  4. Step 4: Simplify right side
    205,141.23x = 22,171,877,222.66
  5. Step 5: Solve for x
    x = 22,171,877,222.66/205,141.23
  6. Step 6: Final answer
    x = 108,081.04

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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.