Home / 215,787.84-297,781.08-120,292.56

Finding the Fourth Proportional to 215,787.84, 297,781.08 and 120,292.56

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Solution

The fourth proportional to 215,787.84, 297,781.08 and 120,292.56 is: 166,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,787.84 : 297,781.08 = 120,292.56 : x
  2. Step 2: Convert to fraction form
    215,787.84/297,781.08 = 120,292.56/x
  3. Step 3: Cross multiply
    215,787.84x = 297,781.08 × 120,292.56
  4. Step 4: Simplify right side
    215,787.84x = 35,820,848,432.76
  5. Step 5: Solve for x
    x = 35,820,848,432.76/215,787.84
  6. Step 6: Final answer
    x = 166,000.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.