Home / 97,858.20-146,787.30-81,251.40

Finding the Fourth Proportional to 97,858.20, 146,787.30 and 81,251.40

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Solution

The fourth proportional to 97,858.20, 146,787.30 and 81,251.40 is: 121,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,858.20 : 146,787.30 = 81,251.40 : x
  2. Step 2: Convert to fraction form
    97,858.20/146,787.30 = 81,251.40/x
  3. Step 3: Cross multiply
    97,858.20x = 146,787.30 × 81,251.40
  4. Step 4: Simplify right side
    97,858.20x = 11,926,673,627.22
  5. Step 5: Solve for x
    x = 11,926,673,627.22/97,858.20
  6. Step 6: Final answer
    x = 121,877.10

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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.