Home / 126,347.82-189,520.80-51,450.36

Finding the Fourth Proportional to 126,347.82, 189,520.80 and 51,450.36

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Solution

The fourth proportional to 126,347.82, 189,520.80 and 51,450.36 is: 77,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347.82 : 189,520.80 = 51,450.36 : x
  2. Step 2: Convert to fraction form
    126,347.82/189,520.80 = 51,450.36/x
  3. Step 3: Cross multiply
    126,347.82x = 189,520.80 × 51,450.36
  4. Step 4: Simplify right side
    126,347.82x = 9,750,913,387.49
  5. Step 5: Solve for x
    x = 9,750,913,387.49/126,347.82
  6. Step 6: Final answer
    x = 77,175.16

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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.