Home / 140,722.46-211,137.80-84,601.31

Finding the Fourth Proportional to 140,722.46, 211,137.80 and 84,601.31

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Solution

The fourth proportional to 140,722.46, 211,137.80 and 84,601.31 is: 126,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,722.46 : 211,137.80 = 84,601.31 : x
  2. Step 2: Convert to fraction form
    140,722.46/211,137.80 = 84,601.31/x
  3. Step 3: Cross multiply
    140,722.46x = 211,137.80 × 84,601.31
  4. Step 4: Simplify right side
    140,722.46x = 17,862,534,774.33
  5. Step 5: Solve for x
    x = 17,862,534,774.33/140,722.46
  6. Step 6: Final answer
    x = 126,934.49

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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.