Home / 126,729.21-174,874.41-75,731.79

Finding the Fourth Proportional to 126,729.21, 174,874.41 and 75,731.79

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Solution

The fourth proportional to 126,729.21, 174,874.41 and 75,731.79 is: 104,502.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,729.21 : 174,874.41 = 75,731.79 : x
  2. Step 2: Convert to fraction form
    126,729.21/174,874.41 = 75,731.79/x
  3. Step 3: Cross multiply
    126,729.21x = 174,874.41 × 75,731.79
  4. Step 4: Simplify right side
    126,729.21x = 13,243,552,094.49
  5. Step 5: Solve for x
    x = 13,243,552,094.49/126,729.21
  6. Step 6: Final answer
    x = 104,502.76

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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.