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Finding the Fourth Proportional to 142,073.36, 212,907 and 104,337.44

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Solution

The fourth proportional to 142,073.36, 212,907 and 104,337.44 is: 156,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,073.36 : 212,907 = 104,337.44 : x
  2. Step 2: Convert to fraction form
    142,073.36/212,907 = 104,337.44/x
  3. Step 3: Cross multiply
    142,073.36x = 212,907 × 104,337.44
  4. Step 4: Simplify right side
    142,073.36x = 22,214,171,338.08
  5. Step 5: Solve for x
    x = 22,214,171,338.08/142,073.36
  6. Step 6: Final answer
    x = 156,357.05

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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.