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Finding the Fourth Proportional to 170,392, 235,131.37 and 93,910.86

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Solution

The fourth proportional to 170,392, 235,131.37 and 93,910.86 is: 129,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,392 : 235,131.37 = 93,910.86 : x
  2. Step 2: Convert to fraction form
    170,392/235,131.37 = 93,910.86/x
  3. Step 3: Cross multiply
    170,392x = 235,131.37 × 93,910.86
  4. Step 4: Simplify right side
    170,392x = 22,081,388,700.12
  5. Step 5: Solve for x
    x = 22,081,388,700.12/170,392
  6. Step 6: Final answer
    x = 129,591.70

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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.