Home / 102,409.31-153,508.43-39,212.17

Finding the Fourth Proportional to 102,409.31, 153,508.43 and 39,212.17

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Solution

The fourth proportional to 102,409.31, 153,508.43 and 39,212.17 is: 58,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,409.31 : 153,508.43 = 39,212.17 : x
  2. Step 2: Convert to fraction form
    102,409.31/153,508.43 = 39,212.17/x
  3. Step 3: Cross multiply
    102,409.31x = 153,508.43 × 39,212.17
  4. Step 4: Simplify right side
    102,409.31x = 6,019,398,367.85
  5. Step 5: Solve for x
    x = 6,019,398,367.85/102,409.31
  6. Step 6: Final answer
    x = 58,777.84

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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.