Home / 198,090.12-297,027.66-89,960.10

Finding the Fourth Proportional to 198,090.12, 297,027.66 and 89,960.10

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Solution

The fourth proportional to 198,090.12, 297,027.66 and 89,960.10 is: 134,891.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,090.12 : 297,027.66 = 89,960.10 : x
  2. Step 2: Convert to fraction form
    198,090.12/297,027.66 = 89,960.10/x
  3. Step 3: Cross multiply
    198,090.12x = 297,027.66 × 89,960.10
  4. Step 4: Simplify right side
    198,090.12x = 26,720,637,996.37
  5. Step 5: Solve for x
    x = 26,720,637,996.37/198,090.12
  6. Step 6: Final answer
    x = 134,891.32

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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.