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Finding the Fourth Proportional to 124,370.68, 171,659.23 and 79,039.82

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Solution

The fourth proportional to 124,370.68, 171,659.23 and 79,039.82 is: 109,092.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,370.68 : 171,659.23 = 79,039.82 : x
  2. Step 2: Convert to fraction form
    124,370.68/171,659.23 = 79,039.82/x
  3. Step 3: Cross multiply
    124,370.68x = 171,659.23 × 79,039.82
  4. Step 4: Simplify right side
    124,370.68x = 13,567,913,584.64
  5. Step 5: Solve for x
    x = 13,567,913,584.64/124,370.68
  6. Step 6: Final answer
    x = 109,092.54

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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.