Home / 204,782.45-307,312.07-71,663.87

Finding the Fourth Proportional to 204,782.45, 307,312.07 and 71,663.87

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Solution

The fourth proportional to 204,782.45, 307,312.07 and 71,663.87 is: 107,544.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,782.45 : 307,312.07 = 71,663.87 : x
  2. Step 2: Convert to fraction form
    204,782.45/307,312.07 = 71,663.87/x
  3. Step 3: Cross multiply
    204,782.45x = 307,312.07 × 71,663.87
  4. Step 4: Simplify right side
    204,782.45x = 22,023,172,643.87
  5. Step 5: Solve for x
    x = 22,023,172,643.87/204,782.45
  6. Step 6: Final answer
    x = 107,544.24

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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.