Home / 143,419.21-215,154.63-116,999.44

Finding the Fourth Proportional to 143,419.21, 215,154.63 and 116,999.44

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Solution

The fourth proportional to 143,419.21, 215,154.63 and 116,999.44 is: 175,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,419.21 : 215,154.63 = 116,999.44 : x
  2. Step 2: Convert to fraction form
    143,419.21/215,154.63 = 116,999.44/x
  3. Step 3: Cross multiply
    143,419.21x = 215,154.63 × 116,999.44
  4. Step 4: Simplify right side
    143,419.21x = 25,172,970,685.52
  5. Step 5: Solve for x
    x = 25,172,970,685.52/143,419.21
  6. Step 6: Final answer
    x = 175,520.22

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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.