Home / 106,815.69-160,221.78-43,621.92

Finding the Fourth Proportional to 106,815.69, 160,221.78 and 43,621.92

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Solution

The fourth proportional to 106,815.69, 160,221.78 and 43,621.92 is: 65,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,815.69 : 160,221.78 = 43,621.92 : x
  2. Step 2: Convert to fraction form
    106,815.69/160,221.78 = 43,621.92/x
  3. Step 3: Cross multiply
    106,815.69x = 160,221.78 × 43,621.92
  4. Step 4: Simplify right side
    106,815.69x = 6,989,181,669.42
  5. Step 5: Solve for x
    x = 6,989,181,669.42/106,815.69
  6. Step 6: Final answer
    x = 65,432.16

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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.