Home / 198,154.36-297,276.90-85,853.26

Finding the Fourth Proportional to 198,154.36, 297,276.90 and 85,853.26

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Solution

The fourth proportional to 198,154.36, 297,276.90 and 85,853.26 is: 128,799.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,154.36 : 297,276.90 = 85,853.26 : x
  2. Step 2: Convert to fraction form
    198,154.36/297,276.90 = 85,853.26/x
  3. Step 3: Cross multiply
    198,154.36x = 297,276.90 × 85,853.26
  4. Step 4: Simplify right side
    198,154.36x = 25,522,190,987.69
  5. Step 5: Solve for x
    x = 25,522,190,987.69/198,154.36
  6. Step 6: Final answer
    x = 128,799.54

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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.