Home / 126,159.46-189,024.97-76,134.45

Finding the Fourth Proportional to 126,159.46, 189,024.97 and 76,134.45

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Solution

The fourth proportional to 126,159.46, 189,024.97 and 76,134.45 is: 114,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,159.46 : 189,024.97 = 76,134.45 : x
  2. Step 2: Convert to fraction form
    126,159.46/189,024.97 = 76,134.45/x
  3. Step 3: Cross multiply
    126,159.46x = 189,024.97 × 76,134.45
  4. Step 4: Simplify right side
    126,159.46x = 14,391,312,127.22
  5. Step 5: Solve for x
    x = 14,391,312,127.22/126,159.46
  6. Step 6: Final answer
    x = 114,072.40

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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.