Home / 126,425.55-189,666.03-47,539.79

Finding the Fourth Proportional to 126,425.55, 189,666.03 and 47,539.79

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Solution

The fourth proportional to 126,425.55, 189,666.03 and 47,539.79 is: 71,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.55 : 189,666.03 = 47,539.79 : x
  2. Step 2: Convert to fraction form
    126,425.55/189,666.03 = 47,539.79/x
  3. Step 3: Cross multiply
    126,425.55x = 189,666.03 × 47,539.79
  4. Step 4: Simplify right side
    126,425.55x = 9,016,683,177.53
  5. Step 5: Solve for x
    x = 9,016,683,177.53/126,425.55
  6. Step 6: Final answer
    x = 71,320.10

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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.