Home / 142,734.66-214,234.83-72,666.42

Finding the Fourth Proportional to 142,734.66, 214,234.83 and 72,666.42

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Solution

The fourth proportional to 142,734.66, 214,234.83 and 72,666.42 is: 109,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,734.66 : 214,234.83 = 72,666.42 : x
  2. Step 2: Convert to fraction form
    142,734.66/214,234.83 = 72,666.42/x
  3. Step 3: Cross multiply
    142,734.66x = 214,234.83 × 72,666.42
  4. Step 4: Simplify right side
    142,734.66x = 15,567,678,135.41
  5. Step 5: Solve for x
    x = 15,567,678,135.41/142,734.66
  6. Step 6: Final answer
    x = 109,067.26

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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.