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Finding the Fourth Proportional to 139,599.81, 192,544.63 and 88,568.60

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Solution

The fourth proportional to 139,599.81, 192,544.63 and 88,568.60 is: 122,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599.81 : 192,544.63 = 88,568.60 : x
  2. Step 2: Convert to fraction form
    139,599.81/192,544.63 = 88,568.60/x
  3. Step 3: Cross multiply
    139,599.81x = 192,544.63 × 88,568.60
  4. Step 4: Simplify right side
    139,599.81x = 17,053,407,132.47
  5. Step 5: Solve for x
    x = 17,053,407,132.47/139,599.81
  6. Step 6: Final answer
    x = 122,159.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.