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Finding the Fourth Proportional to 123,749.04, 185,657.04 and 57,134.64

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Solution

The fourth proportional to 123,749.04, 185,657.04 and 57,134.64 is: 85,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,749.04 : 185,657.04 = 57,134.64 : x
  2. Step 2: Convert to fraction form
    123,749.04/185,657.04 = 57,134.64/x
  3. Step 3: Cross multiply
    123,749.04x = 185,657.04 × 57,134.64
  4. Step 4: Simplify right side
    123,749.04x = 10,607,448,143.87
  5. Step 5: Solve for x
    x = 10,607,448,143.87/123,749.04
  6. Step 6: Final answer
    x = 85,717.42

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Why These Related Problems?

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