Home / 187,121.44-280,752-112,295.26

Finding the Fourth Proportional to 187,121.44, 280,752 and 112,295.26

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Solution

The fourth proportional to 187,121.44, 280,752 and 112,295.26 is: 168,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,121.44 : 280,752 = 112,295.26 : x
  2. Step 2: Convert to fraction form
    187,121.44/280,752 = 112,295.26/x
  3. Step 3: Cross multiply
    187,121.44x = 280,752 × 112,295.26
  4. Step 4: Simplify right side
    187,121.44x = 31,527,118,835.52
  5. Step 5: Solve for x
    x = 31,527,118,835.52/187,121.44
  6. Step 6: Final answer
    x = 168,484.80

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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.