Home / 126,739.39-174,900.51-78,992.69

Finding the Fourth Proportional to 126,739.39, 174,900.51 and 78,992.69

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Solution

The fourth proportional to 126,739.39, 174,900.51 and 78,992.69 is: 109,010.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,739.39 : 174,900.51 = 78,992.69 : x
  2. Step 2: Convert to fraction form
    126,739.39/174,900.51 = 78,992.69/x
  3. Step 3: Cross multiply
    126,739.39x = 174,900.51 × 78,992.69
  4. Step 4: Simplify right side
    126,739.39x = 13,815,861,372.31
  5. Step 5: Solve for x
    x = 13,815,861,372.31/126,739.39
  6. Step 6: Final answer
    x = 109,010.01

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1.5x scale

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.