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Finding the Fourth Proportional to 123,948, 171,498.60 and 108,065.52

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Solution

The fourth proportional to 123,948, 171,498.60 and 108,065.52 is: 149,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,948 : 171,498.60 = 108,065.52 : x
  2. Step 2: Convert to fraction form
    123,948/171,498.60 = 108,065.52/x
  3. Step 3: Cross multiply
    123,948x = 171,498.60 × 108,065.52
  4. Step 4: Simplify right side
    123,948x = 18,533,085,388.27
  5. Step 5: Solve for x
    x = 18,533,085,388.27/123,948
  6. Step 6: Final answer
    x = 149,523.07

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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.