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Finding the Fourth Proportional to 168,383.72, 232,310.91 and 107,987.67

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Solution

The fourth proportional to 168,383.72, 232,310.91 and 107,987.67 is: 148,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,383.72 : 232,310.91 = 107,987.67 : x
  2. Step 2: Convert to fraction form
    168,383.72/232,310.91 = 107,987.67/x
  3. Step 3: Cross multiply
    168,383.72x = 232,310.91 × 107,987.67
  4. Step 4: Simplify right side
    168,383.72x = 25,086,713,886.48
  5. Step 5: Solve for x
    x = 25,086,713,886.48/168,383.72
  6. Step 6: Final answer
    x = 148,985.39

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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.