Home / 140,930.15-211,113.56-84,739.49

Finding the Fourth Proportional to 140,930.15, 211,113.56 and 84,739.49

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Solution

The fourth proportional to 140,930.15, 211,113.56 and 84,739.49 is: 126,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,930.15 : 211,113.56 = 84,739.49 : x
  2. Step 2: Convert to fraction form
    140,930.15/211,113.56 = 84,739.49/x
  3. Step 3: Cross multiply
    140,930.15x = 211,113.56 × 84,739.49
  4. Step 4: Simplify right side
    140,930.15x = 17,889,655,406.48
  5. Step 5: Solve for x
    x = 17,889,655,406.48/140,930.15
  6. Step 6: Final answer
    x = 126,939.87

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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.