Home / 126,160.46-189,026.47-76,135.45

Finding the Fourth Proportional to 126,160.46, 189,026.47 and 76,135.45

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Solution

The fourth proportional to 126,160.46, 189,026.47 and 76,135.45 is: 114,073.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,160.46 : 189,026.47 = 76,135.45 : x
  2. Step 2: Convert to fraction form
    126,160.46/189,026.47 = 76,135.45/x
  3. Step 3: Cross multiply
    126,160.46x = 189,026.47 × 76,135.45
  4. Step 4: Simplify right side
    126,160.46x = 14,391,615,355.36
  5. Step 5: Solve for x
    x = 14,391,615,355.36/126,160.46
  6. Step 6: Final answer
    x = 114,073.90

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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.