Home / 126,931.88-175,183.47-73,215.72

Finding the Fourth Proportional to 126,931.88, 175,183.47 and 73,215.72

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Solution

The fourth proportional to 126,931.88, 175,183.47 and 73,215.72 is: 101,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,931.88 : 175,183.47 = 73,215.72 : x
  2. Step 2: Convert to fraction form
    126,931.88/175,183.47 = 73,215.72/x
  3. Step 3: Cross multiply
    126,931.88x = 175,183.47 × 73,215.72
  4. Step 4: Simplify right side
    126,931.88x = 12,826,183,888.15
  5. Step 5: Solve for x
    x = 12,826,183,888.15/126,931.88
  6. Step 6: Final answer
    x = 101,047.78

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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.