Home / 214,938.76-322,408.14-81,787.72

Finding the Fourth Proportional to 214,938.76, 322,408.14 and 81,787.72

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Solution

The fourth proportional to 214,938.76, 322,408.14 and 81,787.72 is: 122,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,938.76 : 322,408.14 = 81,787.72 : x
  2. Step 2: Convert to fraction form
    214,938.76/322,408.14 = 81,787.72/x
  3. Step 3: Cross multiply
    214,938.76x = 322,408.14 × 81,787.72
  4. Step 4: Simplify right side
    214,938.76x = 26,369,026,680.04
  5. Step 5: Solve for x
    x = 26,369,026,680.04/214,938.76
  6. Step 6: Final answer
    x = 122,681.58

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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.