Home / 140,409.24-210,635.76-84,236.16

Finding the Fourth Proportional to 140,409.24, 210,635.76 and 84,236.16

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Solution

The fourth proportional to 140,409.24, 210,635.76 and 84,236.16 is: 126,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,409.24 : 210,635.76 = 84,236.16 : x
  2. Step 2: Convert to fraction form
    140,409.24/210,635.76 = 84,236.16/x
  3. Step 3: Cross multiply
    140,409.24x = 210,635.76 × 84,236.16
  4. Step 4: Simplify right side
    140,409.24x = 17,743,147,581.08
  5. Step 5: Solve for x
    x = 17,743,147,581.08/140,409.24
  6. Step 6: Final answer
    x = 126,367.38

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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.