Home / 143,720.17-215,570.80-53,745.37

Finding the Fourth Proportional to 143,720.17, 215,570.80 and 53,745.37

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Solution

The fourth proportional to 143,720.17, 215,570.80 and 53,745.37 is: 80,614.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,720.17 : 215,570.80 = 53,745.37 : x
  2. Step 2: Convert to fraction form
    143,720.17/215,570.80 = 53,745.37/x
  3. Step 3: Cross multiply
    143,720.17x = 215,570.80 × 53,745.37
  4. Step 4: Simplify right side
    143,720.17x = 11,585,932,407.20
  5. Step 5: Solve for x
    x = 11,585,932,407.20/143,720.17
  6. Step 6: Final answer
    x = 80,614.52

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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.