Home / 140,865.89-211,293.36-56,600.78

Finding the Fourth Proportional to 140,865.89, 211,293.36 and 56,600.78

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Solution

The fourth proportional to 140,865.89, 211,293.36 and 56,600.78 is: 84,898.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,865.89 : 211,293.36 = 56,600.78 : x
  2. Step 2: Convert to fraction form
    140,865.89/211,293.36 = 56,600.78/x
  3. Step 3: Cross multiply
    140,865.89x = 211,293.36 × 56,600.78
  4. Step 4: Simplify right side
    140,865.89x = 11,959,367,928.35
  5. Step 5: Solve for x
    x = 11,959,367,928.35/140,865.89
  6. Step 6: Final answer
    x = 84,898.97

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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.