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Finding the Fourth Proportional to 113,268, 169,980 and 39,396

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Solution

The fourth proportional to 113,268, 169,980 and 39,396 is: 59,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,268 : 169,980 = 39,396 : x
  2. Step 2: Convert to fraction form
    113,268/169,980 = 39,396/x
  3. Step 3: Cross multiply
    113,268x = 169,980 × 39,396
  4. Step 4: Simplify right side
    113,268x = 6,696,532,080
  5. Step 5: Solve for x
    x = 6,696,532,080/113,268
  6. Step 6: Final answer
    x = 59,121.13

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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.