Home / 118,231.38-163,116.67-91,015.79

Finding the Fourth Proportional to 118,231.38, 163,116.67 and 91,015.79

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Solution

The fourth proportional to 118,231.38, 163,116.67 and 91,015.79 is: 125,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,231.38 : 163,116.67 = 91,015.79 : x
  2. Step 2: Convert to fraction form
    118,231.38/163,116.67 = 91,015.79/x
  3. Step 3: Cross multiply
    118,231.38x = 163,116.67 × 91,015.79
  4. Step 4: Simplify right side
    118,231.38x = 14,846,192,582.22
  5. Step 5: Solve for x
    x = 14,846,192,582.22/118,231.38
  6. Step 6: Final answer
    x = 125,568.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.