Home / 140,871.07-211,494.30-81,749.17

Finding the Fourth Proportional to 140,871.07, 211,494.30 and 81,749.17

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Solution

The fourth proportional to 140,871.07, 211,494.30 and 81,749.17 is: 122,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,871.07 : 211,494.30 = 81,749.17 : x
  2. Step 2: Convert to fraction form
    140,871.07/211,494.30 = 81,749.17/x
  3. Step 3: Cross multiply
    140,871.07x = 211,494.30 × 81,749.17
  4. Step 4: Simplify right side
    140,871.07x = 17,289,483,484.73
  5. Step 5: Solve for x
    x = 17,289,483,484.73/140,871.07
  6. Step 6: Final answer
    x = 122,732.68

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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.