Home / 188,721.85-260,443.33-108,164.92

Finding the Fourth Proportional to 188,721.85, 260,443.33 and 108,164.92

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Solution

The fourth proportional to 188,721.85, 260,443.33 and 108,164.92 is: 149,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,721.85 : 260,443.33 = 108,164.92 : x
  2. Step 2: Convert to fraction form
    188,721.85/260,443.33 = 108,164.92/x
  3. Step 3: Cross multiply
    188,721.85x = 260,443.33 × 108,164.92
  4. Step 4: Simplify right side
    188,721.85x = 28,170,831,953.98
  5. Step 5: Solve for x
    x = 28,170,831,953.98/188,721.85
  6. Step 6: Final answer
    x = 149,271.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.