Home / 126,132.15-189,192.75-31,360.35

Finding the Fourth Proportional to 126,132.15, 189,192.75 and 31,360.35

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Solution

The fourth proportional to 126,132.15, 189,192.75 and 31,360.35 is: 47,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,132.15 : 189,192.75 = 31,360.35 : x
  2. Step 2: Convert to fraction form
    126,132.15/189,192.75 = 31,360.35/x
  3. Step 3: Cross multiply
    126,132.15x = 189,192.75 × 31,360.35
  4. Step 4: Simplify right side
    126,132.15x = 5,933,150,857.46
  5. Step 5: Solve for x
    x = 5,933,150,857.46/126,132.15
  6. Step 6: Final answer
    x = 47,039.16

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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.