Home / 97,712.20-146,568.30-86,825.80

Finding the Fourth Proportional to 97,712.20, 146,568.30 and 86,825.80

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Solution

The fourth proportional to 97,712.20, 146,568.30 and 86,825.80 is: 130,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,712.20 : 146,568.30 = 86,825.80 : x
  2. Step 2: Convert to fraction form
    97,712.20/146,568.30 = 86,825.80/x
  3. Step 3: Cross multiply
    97,712.20x = 146,568.30 × 86,825.80
  4. Step 4: Simplify right side
    97,712.20x = 12,725,909,902.14
  5. Step 5: Solve for x
    x = 12,725,909,902.14/97,712.20
  6. Step 6: Final answer
    x = 130,238.70

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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.