Home / 126,618.15-189,927.19-51,738.22

Finding the Fourth Proportional to 126,618.15, 189,927.19 and 51,738.22

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Solution

The fourth proportional to 126,618.15, 189,927.19 and 51,738.22 is: 77,607.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,618.15 : 189,927.19 = 51,738.22 : x
  2. Step 2: Convert to fraction form
    126,618.15/189,927.19 = 51,738.22/x
  3. Step 3: Cross multiply
    126,618.15x = 189,927.19 × 51,738.22
  4. Step 4: Simplify right side
    126,618.15x = 9,826,494,740.20
  5. Step 5: Solve for x
    x = 9,826,494,740.20/126,618.15
  6. Step 6: Final answer
    x = 77,607.32

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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.