Home / 115,939.80-173,909.70-108,106.20

Finding the Fourth Proportional to 115,939.80, 173,909.70 and 108,106.20

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Solution

The fourth proportional to 115,939.80, 173,909.70 and 108,106.20 is: 162,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,939.80 : 173,909.70 = 108,106.20 : x
  2. Step 2: Convert to fraction form
    115,939.80/173,909.70 = 108,106.20/x
  3. Step 3: Cross multiply
    115,939.80x = 173,909.70 × 108,106.20
  4. Step 4: Simplify right side
    115,939.80x = 18,800,716,810.14
  5. Step 5: Solve for x
    x = 18,800,716,810.14/115,939.80
  6. Step 6: Final answer
    x = 162,159.30

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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.