Home / 126,177.10-189,261.39-31,407.10

Finding the Fourth Proportional to 126,177.10, 189,261.39 and 31,407.10

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Solution

The fourth proportional to 126,177.10, 189,261.39 and 31,407.10 is: 47,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177.10 : 189,261.39 = 31,407.10 : x
  2. Step 2: Convert to fraction form
    126,177.10/189,261.39 = 31,407.10/x
  3. Step 3: Cross multiply
    126,177.10x = 189,261.39 × 31,407.10
  4. Step 4: Simplify right side
    126,177.10x = 5,944,151,401.87
  5. Step 5: Solve for x
    x = 5,944,151,401.87/126,177.10
  6. Step 6: Final answer
    x = 47,109.59

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1.5x scale

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.