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Finding the Fourth Proportional to 123,900.40, 185,850.60 and 45,004.52

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Solution

The fourth proportional to 123,900.40, 185,850.60 and 45,004.52 is: 67,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,900.40 : 185,850.60 = 45,004.52 : x
  2. Step 2: Convert to fraction form
    123,900.40/185,850.60 = 45,004.52/x
  3. Step 3: Cross multiply
    123,900.40x = 185,850.60 × 45,004.52
  4. Step 4: Simplify right side
    123,900.40x = 8,364,117,044.71
  5. Step 5: Solve for x
    x = 8,364,117,044.71/123,900.40
  6. Step 6: Final answer
    x = 67,506.78

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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.