Home / 140,100.13-193,388.06-82,739.68

Finding the Fourth Proportional to 140,100.13, 193,388.06 and 82,739.68

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Solution

The fourth proportional to 140,100.13, 193,388.06 and 82,739.68 is: 114,210.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,100.13 : 193,388.06 = 82,739.68 : x
  2. Step 2: Convert to fraction form
    140,100.13/193,388.06 = 82,739.68/x
  3. Step 3: Cross multiply
    140,100.13x = 193,388.06 × 82,739.68
  4. Step 4: Simplify right side
    140,100.13x = 16,000,865,458.19
  5. Step 5: Solve for x
    x = 16,000,865,458.19/140,100.13
  6. Step 6: Final answer
    x = 114,210.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.