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Finding the Fourth Proportional to 115,879.58, 173,503.26 and 87,714.26

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Solution

The fourth proportional to 115,879.58, 173,503.26 and 87,714.26 is: 131,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,879.58 : 173,503.26 = 87,714.26 : x
  2. Step 2: Convert to fraction form
    115,879.58/173,503.26 = 87,714.26/x
  3. Step 3: Cross multiply
    115,879.58x = 173,503.26 × 87,714.26
  4. Step 4: Simplify right side
    115,879.58x = 15,218,709,190.97
  5. Step 5: Solve for x
    x = 15,218,709,190.97/115,879.58
  6. Step 6: Final answer
    x = 131,332.11

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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.