Home / 142,989.72-214,442.82-54,179.16

Finding the Fourth Proportional to 142,989.72, 214,442.82 and 54,179.16

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Solution

The fourth proportional to 142,989.72, 214,442.82 and 54,179.16 is: 81,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,989.72 : 214,442.82 = 54,179.16 : x
  2. Step 2: Convert to fraction form
    142,989.72/214,442.82 = 54,179.16/x
  3. Step 3: Cross multiply
    142,989.72x = 214,442.82 × 54,179.16
  4. Step 4: Simplify right side
    142,989.72x = 11,618,331,855.63
  5. Step 5: Solve for x
    x = 11,618,331,855.63/142,989.72
  6. Step 6: Final answer
    x = 81,252.92

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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.