Home / 112,456.53-168,712.50-79,241.48

Finding the Fourth Proportional to 112,456.53, 168,712.50 and 79,241.48

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Solution

The fourth proportional to 112,456.53, 168,712.50 and 79,241.48 is: 118,881.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,456.53 : 168,712.50 = 79,241.48 : x
  2. Step 2: Convert to fraction form
    112,456.53/168,712.50 = 79,241.48/x
  3. Step 3: Cross multiply
    112,456.53x = 168,712.50 × 79,241.48
  4. Step 4: Simplify right side
    112,456.53x = 13,369,027,350.94
  5. Step 5: Solve for x
    x = 13,369,027,350.94/112,456.53
  6. Step 6: Final answer
    x = 118,881.73

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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.