Home / 142,787.40-214,181.10-136,226.40

Finding the Fourth Proportional to 142,787.40, 214,181.10 and 136,226.40

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Solution

The fourth proportional to 142,787.40, 214,181.10 and 136,226.40 is: 204,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,787.40 : 214,181.10 = 136,226.40 : x
  2. Step 2: Convert to fraction form
    142,787.40/214,181.10 = 136,226.40/x
  3. Step 3: Cross multiply
    142,787.40x = 214,181.10 × 136,226.40
  4. Step 4: Simplify right side
    142,787.40x = 29,177,120,201.04
  5. Step 5: Solve for x
    x = 29,177,120,201.04/142,787.40
  6. Step 6: Final answer
    x = 204,339.60

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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.