Home / 126,425.33-189,574.49-42,155.66

Finding the Fourth Proportional to 126,425.33, 189,574.49 and 42,155.66

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Solution

The fourth proportional to 126,425.33, 189,574.49 and 42,155.66 is: 63,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,425.33 : 189,574.49 = 42,155.66 : x
  2. Step 2: Convert to fraction form
    126,425.33/189,574.49 = 42,155.66/x
  3. Step 3: Cross multiply
    126,425.33x = 189,574.49 × 42,155.66
  4. Step 4: Simplify right side
    126,425.33x = 7,991,636,586.46
  5. Step 5: Solve for x
    x = 7,991,636,586.46/126,425.33
  6. Step 6: Final answer
    x = 63,212.31

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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.