Home / 126,439.71-189,666.87-47,554.62

Finding the Fourth Proportional to 126,439.71, 189,666.87 and 47,554.62

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Solution

The fourth proportional to 126,439.71, 189,666.87 and 47,554.62 is: 71,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,439.71 : 189,666.87 = 47,554.62 : x
  2. Step 2: Convert to fraction form
    126,439.71/189,666.87 = 47,554.62/x
  3. Step 3: Cross multiply
    126,439.71x = 189,666.87 × 47,554.62
  4. Step 4: Simplify right side
    126,439.71x = 9,019,536,507.98
  5. Step 5: Solve for x
    x = 9,019,536,507.98/126,439.71
  6. Step 6: Final answer
    x = 71,334.68

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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.