Home / 165,379.81-247,872.89-115,188.16

Finding the Fourth Proportional to 165,379.81, 247,872.89 and 115,188.16

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Solution

The fourth proportional to 165,379.81, 247,872.89 and 115,188.16 is: 172,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,379.81 : 247,872.89 = 115,188.16 : x
  2. Step 2: Convert to fraction form
    165,379.81/247,872.89 = 115,188.16/x
  3. Step 3: Cross multiply
    165,379.81x = 247,872.89 × 115,188.16
  4. Step 4: Simplify right side
    165,379.81x = 28,552,022,112.98
  5. Step 5: Solve for x
    x = 28,552,022,112.98/165,379.81
  6. Step 6: Final answer
    x = 172,645.15

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1.5x scale

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.