Home / 138,192.84-207,267.10-49,429.80

Finding the Fourth Proportional to 138,192.84, 207,267.10 and 49,429.80

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Solution

The fourth proportional to 138,192.84, 207,267.10 and 49,429.80 is: 74,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,192.84 : 207,267.10 = 49,429.80 : x
  2. Step 2: Convert to fraction form
    138,192.84/207,267.10 = 49,429.80/x
  3. Step 3: Cross multiply
    138,192.84x = 207,267.10 × 49,429.80
  4. Step 4: Simplify right side
    138,192.84x = 10,245,171,299.58
  5. Step 5: Solve for x
    x = 10,245,171,299.58/138,192.84
  6. Step 6: Final answer
    x = 74,136.77

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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.