Home / 104,983.15-157,416.90-71,740.75

Finding the Fourth Proportional to 104,983.15, 157,416.90 and 71,740.75

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Solution

The fourth proportional to 104,983.15, 157,416.90 and 71,740.75 is: 107,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,983.15 : 157,416.90 = 71,740.75 : x
  2. Step 2: Convert to fraction form
    104,983.15/157,416.90 = 71,740.75/x
  3. Step 3: Cross multiply
    104,983.15x = 157,416.90 × 71,740.75
  4. Step 4: Simplify right side
    104,983.15x = 11,293,206,468.68
  5. Step 5: Solve for x
    x = 11,293,206,468.68/104,983.15
  6. Step 6: Final answer
    x = 107,571.61

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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.