Home / 118,383.15-177,573.51-68,431.46

Finding the Fourth Proportional to 118,383.15, 177,573.51 and 68,431.46

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Solution

The fourth proportional to 118,383.15, 177,573.51 and 68,431.46 is: 102,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,383.15 : 177,573.51 = 68,431.46 : x
  2. Step 2: Convert to fraction form
    118,383.15/177,573.51 = 68,431.46/x
  3. Step 3: Cross multiply
    118,383.15x = 177,573.51 × 68,431.46
  4. Step 4: Simplify right side
    118,383.15x = 12,151,614,990.56
  5. Step 5: Solve for x
    x = 12,151,614,990.56/118,383.15
  6. Step 6: Final answer
    x = 102,646.49

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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.