Home / 106,485.42-159,789.19-43,293.88

Finding the Fourth Proportional to 106,485.42, 159,789.19 and 43,293.88

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Solution

The fourth proportional to 106,485.42, 159,789.19 and 43,293.88 is: 64,965.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,485.42 : 159,789.19 = 43,293.88 : x
  2. Step 2: Convert to fraction form
    106,485.42/159,789.19 = 43,293.88/x
  3. Step 3: Cross multiply
    106,485.42x = 159,789.19 × 43,293.88
  4. Step 4: Simplify right side
    106,485.42x = 6,917,894,017.16
  5. Step 5: Solve for x
    x = 6,917,894,017.16/106,485.42
  6. Step 6: Final answer
    x = 64,965.65

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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.