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Finding the Fourth Proportional to 123,999.26, 185,930.84 and 57,402.68

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Solution

The fourth proportional to 123,999.26, 185,930.84 and 57,402.68 is: 86,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,999.26 : 185,930.84 = 57,402.68 : x
  2. Step 2: Convert to fraction form
    123,999.26/185,930.84 = 57,402.68/x
  3. Step 3: Cross multiply
    123,999.26x = 185,930.84 × 57,402.68
  4. Step 4: Simplify right side
    123,999.26x = 10,672,927,724.50
  5. Step 5: Solve for x
    x = 10,672,927,724.50/123,999.26
  6. Step 6: Final answer
    x = 86,072.51

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1.5x scale

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.