Home / 172,654.08-259,016.42-72,814.35

Finding the Fourth Proportional to 172,654.08, 259,016.42 and 72,814.35

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Solution

The fourth proportional to 172,654.08, 259,016.42 and 72,814.35 is: 109,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,654.08 : 259,016.42 = 72,814.35 : x
  2. Step 2: Convert to fraction form
    172,654.08/259,016.42 = 72,814.35/x
  3. Step 3: Cross multiply
    172,654.08x = 259,016.42 × 72,814.35
  4. Step 4: Simplify right side
    172,654.08x = 18,860,112,261.63
  5. Step 5: Solve for x
    x = 18,860,112,261.63/172,654.08
  6. Step 6: Final answer
    x = 109,236.41

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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.