Home / 142,832.25-214,399.03-139,615.26

Finding the Fourth Proportional to 142,832.25, 214,399.03 and 139,615.26

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Solution

The fourth proportional to 142,832.25, 214,399.03 and 139,615.26 is: 209,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,832.25 : 214,399.03 = 139,615.26 : x
  2. Step 2: Convert to fraction form
    142,832.25/214,399.03 = 139,615.26/x
  3. Step 3: Cross multiply
    142,832.25x = 214,399.03 × 139,615.26
  4. Step 4: Simplify right side
    142,832.25x = 29,933,376,317.20
  5. Step 5: Solve for x
    x = 29,933,376,317.20/142,832.25
  6. Step 6: Final answer
    x = 209,570.15

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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.