Home / 126,425.09-189,665.33-47,539.32

Finding the Fourth Proportional to 126,425.09, 189,665.33 and 47,539.32

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Solution

The fourth proportional to 126,425.09, 189,665.33 and 47,539.32 is: 71,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.09 : 189,665.33 = 47,539.32 : x
  2. Step 2: Convert to fraction form
    126,425.09/189,665.33 = 47,539.32/x
  3. Step 3: Cross multiply
    126,425.09x = 189,665.33 × 47,539.32
  4. Step 4: Simplify right side
    126,425.09x = 9,016,560,045.11
  5. Step 5: Solve for x
    x = 9,016,560,045.11/126,425.09
  6. Step 6: Final answer
    x = 71,319.39

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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.