Home / 97,864.20-146,796.30-81,257.40

Finding the Fourth Proportional to 97,864.20, 146,796.30 and 81,257.40

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Solution

The fourth proportional to 97,864.20, 146,796.30 and 81,257.40 is: 121,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,864.20 : 146,796.30 = 81,257.40 : x
  2. Step 2: Convert to fraction form
    97,864.20/146,796.30 = 81,257.40/x
  3. Step 3: Cross multiply
    97,864.20x = 146,796.30 × 81,257.40
  4. Step 4: Simplify right side
    97,864.20x = 11,928,285,667.62
  5. Step 5: Solve for x
    x = 11,928,285,667.62/97,864.20
  6. Step 6: Final answer
    x = 121,886.10

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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.