Home / 126,159.36-189,024.82-76,134.35

Finding the Fourth Proportional to 126,159.36, 189,024.82 and 76,134.35

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Solution

The fourth proportional to 126,159.36, 189,024.82 and 76,134.35 is: 114,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,159.36 : 189,024.82 = 76,134.35 : x
  2. Step 2: Convert to fraction form
    126,159.36/189,024.82 = 76,134.35/x
  3. Step 3: Cross multiply
    126,159.36x = 189,024.82 × 76,134.35
  4. Step 4: Simplify right side
    126,159.36x = 14,391,282,086.79
  5. Step 5: Solve for x
    x = 14,391,282,086.79/126,159.36
  6. Step 6: Final answer
    x = 114,072.25

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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.