Home / 126,261.30-174,259.47-80,990.34

Finding the Fourth Proportional to 126,261.30, 174,259.47 and 80,990.34

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Solution

The fourth proportional to 126,261.30, 174,259.47 and 80,990.34 is: 111,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,261.30 : 174,259.47 = 80,990.34 : x
  2. Step 2: Convert to fraction form
    126,261.30/174,259.47 = 80,990.34/x
  3. Step 3: Cross multiply
    126,261.30x = 174,259.47 × 80,990.34
  4. Step 4: Simplify right side
    126,261.30x = 14,113,333,723.52
  5. Step 5: Solve for x
    x = 14,113,333,723.52/126,261.30
  6. Step 6: Final answer
    x = 111,778.78

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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.