Home / 126,516.16-189,644.64-47,575.36

Finding the Fourth Proportional to 126,516.16, 189,644.64 and 47,575.36

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Solution

The fourth proportional to 126,516.16, 189,644.64 and 47,575.36 is: 71,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,516.16 : 189,644.64 = 47,575.36 : x
  2. Step 2: Convert to fraction form
    126,516.16/189,644.64 = 47,575.36/x
  3. Step 3: Cross multiply
    126,516.16x = 189,644.64 × 47,575.36
  4. Step 4: Simplify right side
    126,516.16x = 9,022,412,020.07
  5. Step 5: Solve for x
    x = 9,022,412,020.07/126,516.16
  6. Step 6: Final answer
    x = 71,314.30

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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.