Home / 143,540.19-215,341.43-43,697.80

Finding the Fourth Proportional to 143,540.19, 215,341.43 and 43,697.80

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Solution

The fourth proportional to 143,540.19, 215,341.43 and 43,697.80 is: 65,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.19 : 215,341.43 = 43,697.80 : x
  2. Step 2: Convert to fraction form
    143,540.19/215,341.43 = 43,697.80/x
  3. Step 3: Cross multiply
    143,540.19x = 215,341.43 × 43,697.80
  4. Step 4: Simplify right side
    143,540.19x = 9,409,946,739.85
  5. Step 5: Solve for x
    x = 9,409,946,739.85/143,540.19
  6. Step 6: Final answer
    x = 65,556.18

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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.