Home / 126,747-190,123.20-47,898.36

Finding the Fourth Proportional to 126,747, 190,123.20 and 47,898.36

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Solution

The fourth proportional to 126,747, 190,123.20 and 47,898.36 is: 71,848.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,747 : 190,123.20 = 47,898.36 : x
  2. Step 2: Convert to fraction form
    126,747/190,123.20 = 47,898.36/x
  3. Step 3: Cross multiply
    126,747x = 190,123.20 × 47,898.36
  4. Step 4: Simplify right side
    126,747x = 9,106,589,477.95
  5. Step 5: Solve for x
    x = 9,106,589,477.95/126,747
  6. Step 6: Final answer
    x = 71,848.56

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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.