Home / 126,160.36-189,026.32-76,135.35

Finding the Fourth Proportional to 126,160.36, 189,026.32 and 76,135.35

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Solution

The fourth proportional to 126,160.36, 189,026.32 and 76,135.35 is: 114,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,160.36 : 189,026.32 = 76,135.35 : x
  2. Step 2: Convert to fraction form
    126,160.36/189,026.32 = 76,135.35/x
  3. Step 3: Cross multiply
    126,160.36x = 189,026.32 × 76,135.35
  4. Step 4: Simplify right side
    126,160.36x = 14,391,585,032.41
  5. Step 5: Solve for x
    x = 14,391,585,032.41/126,160.36
  6. Step 6: Final answer
    x = 114,073.75

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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.