Home / 106,878.24-147,441.84-69,164.64

Finding the Fourth Proportional to 106,878.24, 147,441.84 and 69,164.64

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Solution

The fourth proportional to 106,878.24, 147,441.84 and 69,164.64 is: 95,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,878.24 : 147,441.84 = 69,164.64 : x
  2. Step 2: Convert to fraction form
    106,878.24/147,441.84 = 69,164.64/x
  3. Step 3: Cross multiply
    106,878.24x = 147,441.84 × 69,164.64
  4. Step 4: Simplify right side
    106,878.24x = 10,197,761,784.54
  5. Step 5: Solve for x
    x = 10,197,761,784.54/106,878.24
  6. Step 6: Final answer
    x = 95,414.76

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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.