Home / 102,740.92-154,160.22-71,199.52

Finding the Fourth Proportional to 102,740.92, 154,160.22 and 71,199.52

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Solution

The fourth proportional to 102,740.92, 154,160.22 and 71,199.52 is: 106,833.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,740.92 : 154,160.22 = 71,199.52 : x
  2. Step 2: Convert to fraction form
    102,740.92/154,160.22 = 71,199.52/x
  3. Step 3: Cross multiply
    102,740.92x = 154,160.22 × 71,199.52
  4. Step 4: Simplify right side
    102,740.92x = 10,976,133,667.09
  5. Step 5: Solve for x
    x = 10,976,133,667.09/102,740.92
  6. Step 6: Final answer
    x = 106,833.13

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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.