Home / 142,166.53-213,168.39-114,138.30

Finding the Fourth Proportional to 142,166.53, 213,168.39 and 114,138.30

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Solution

The fourth proportional to 142,166.53, 213,168.39 and 114,138.30 is: 171,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,166.53 : 213,168.39 = 114,138.30 : x
  2. Step 2: Convert to fraction form
    142,166.53/213,168.39 = 114,138.30/x
  3. Step 3: Cross multiply
    142,166.53x = 213,168.39 × 114,138.30
  4. Step 4: Simplify right side
    142,166.53x = 24,330,677,648.34
  5. Step 5: Solve for x
    x = 24,330,677,648.34/142,166.53
  6. Step 6: Final answer
    x = 171,142.09

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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.