Home / 126,629.96-174,803.16-78,906.92

Finding the Fourth Proportional to 126,629.96, 174,803.16 and 78,906.92

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Solution

The fourth proportional to 126,629.96, 174,803.16 and 78,906.92 is: 108,925.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,629.96 : 174,803.16 = 78,906.92 : x
  2. Step 2: Convert to fraction form
    126,629.96/174,803.16 = 78,906.92/x
  3. Step 3: Cross multiply
    126,629.96x = 174,803.16 × 78,906.92
  4. Step 4: Simplify right side
    126,629.96x = 13,793,178,961.87
  5. Step 5: Solve for x
    x = 13,793,178,961.87/126,629.96
  6. Step 6: Final answer
    x = 108,925.08

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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.