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Finding the Fourth Proportional to 147,392.11, 203,406.56 and 83,740.69

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Solution

The fourth proportional to 147,392.11, 203,406.56 and 83,740.69 is: 115,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,392.11 : 203,406.56 = 83,740.69 : x
  2. Step 2: Convert to fraction form
    147,392.11/203,406.56 = 83,740.69/x
  3. Step 3: Cross multiply
    147,392.11x = 203,406.56 × 83,740.69
  4. Step 4: Simplify right side
    147,392.11x = 17,033,405,684.93
  5. Step 5: Solve for x
    x = 17,033,405,684.93/147,392.11
  6. Step 6: Final answer
    x = 115,565.25

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