Home / 155,128.98-232,636-55,262.64

Finding the Fourth Proportional to 155,128.98, 232,636 and 55,262.64

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Solution

The fourth proportional to 155,128.98, 232,636 and 55,262.64 is: 82,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,128.98 : 232,636 = 55,262.64 : x
  2. Step 2: Convert to fraction form
    155,128.98/232,636 = 55,262.64/x
  3. Step 3: Cross multiply
    155,128.98x = 232,636 × 55,262.64
  4. Step 4: Simplify right side
    155,128.98x = 12,856,079,519.04
  5. Step 5: Solve for x
    x = 12,856,079,519.04/155,128.98
  6. Step 6: Final answer
    x = 82,873.49

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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.