Home / 105,561.92-158,333.16-30,701.72

Finding the Fourth Proportional to 105,561.92, 158,333.16 and 30,701.72

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Solution

The fourth proportional to 105,561.92, 158,333.16 and 30,701.72 is: 46,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,561.92 : 158,333.16 = 30,701.72 : x
  2. Step 2: Convert to fraction form
    105,561.92/158,333.16 = 30,701.72/x
  3. Step 3: Cross multiply
    105,561.92x = 158,333.16 × 30,701.72
  4. Step 4: Simplify right side
    105,561.92x = 4,861,100,345.04
  5. Step 5: Solve for x
    x = 4,861,100,345.04/105,561.92
  6. Step 6: Final answer
    x = 46,049.75

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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.