Home / 105,637.75-158,517.78-39,124.60

Finding the Fourth Proportional to 105,637.75, 158,517.78 and 39,124.60

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Solution

The fourth proportional to 105,637.75, 158,517.78 and 39,124.60 is: 58,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,637.75 : 158,517.78 = 39,124.60 : x
  2. Step 2: Convert to fraction form
    105,637.75/158,517.78 = 39,124.60/x
  3. Step 3: Cross multiply
    105,637.75x = 158,517.78 × 39,124.60
  4. Step 4: Simplify right side
    105,637.75x = 6,201,944,735.39
  5. Step 5: Solve for x
    x = 6,201,944,735.39/105,637.75
  6. Step 6: Final answer
    x = 58,709.55

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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.