Home / 204,707.23-307,089.56-71,557.20

Finding the Fourth Proportional to 204,707.23, 307,089.56 and 71,557.20

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Solution

The fourth proportional to 204,707.23, 307,089.56 and 71,557.20 is: 107,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,707.23 : 307,089.56 = 71,557.20 : x
  2. Step 2: Convert to fraction form
    204,707.23/307,089.56 = 71,557.20/x
  3. Step 3: Cross multiply
    204,707.23x = 307,089.56 × 71,557.20
  4. Step 4: Simplify right side
    204,707.23x = 21,974,468,705.05
  5. Step 5: Solve for x
    x = 21,974,468,705.05/204,707.23
  6. Step 6: Final answer
    x = 107,345.84

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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.