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Finding the Fourth Proportional to 183,712.93, 253,527.78 and 103,142.64

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Solution

The fourth proportional to 183,712.93, 253,527.78 and 103,142.64 is: 142,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,712.93 : 253,527.78 = 103,142.64 : x
  2. Step 2: Convert to fraction form
    183,712.93/253,527.78 = 103,142.64/x
  3. Step 3: Cross multiply
    183,712.93x = 253,527.78 × 103,142.64
  4. Step 4: Simplify right side
    183,712.93x = 26,149,524,542.54
  5. Step 5: Solve for x
    x = 26,149,524,542.54/183,712.93
  6. Step 6: Final answer
    x = 142,339.05

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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.