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Finding the Fourth Proportional to 121,712, 182,568 and 38,606

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Solution

The fourth proportional to 121,712, 182,568 and 38,606 is: 57,909

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,712 : 182,568 = 38,606 : x
  2. Step 2: Convert to fraction form
    121,712/182,568 = 38,606/x
  3. Step 3: Cross multiply
    121,712x = 182,568 × 38,606
  4. Step 4: Simplify right side
    121,712x = 7,048,220,208
  5. Step 5: Solve for x
    x = 7,048,220,208/121,712
  6. Step 6: Final answer
    x = 57,909

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.