Home / 125,228.49-187,864.62-55,105.98

Finding the Fourth Proportional to 125,228.49, 187,864.62 and 55,105.98

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Solution

The fourth proportional to 125,228.49, 187,864.62 and 55,105.98 is: 82,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,228.49 : 187,864.62 = 55,105.98 : x
  2. Step 2: Convert to fraction form
    125,228.49/187,864.62 = 55,105.98/x
  3. Step 3: Cross multiply
    125,228.49x = 187,864.62 × 55,105.98
  4. Step 4: Simplify right side
    125,228.49x = 10,352,463,992.43
  5. Step 5: Solve for x
    x = 10,352,463,992.43/125,228.49
  6. Step 6: Final answer
    x = 82,668.60

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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.