Home / 198,045.48-297,170.34-131,531.64

Finding the Fourth Proportional to 198,045.48, 297,170.34 and 131,531.64

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Solution

The fourth proportional to 198,045.48, 297,170.34 and 131,531.64 is: 197,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,045.48 : 297,170.34 = 131,531.64 : x
  2. Step 2: Convert to fraction form
    198,045.48/297,170.34 = 131,531.64/x
  3. Step 3: Cross multiply
    198,045.48x = 297,170.34 × 131,531.64
  4. Step 4: Simplify right side
    198,045.48x = 39,087,302,179.56
  5. Step 5: Solve for x
    x = 39,087,302,179.56/198,045.48
  6. Step 6: Final answer
    x = 197,365.28

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1.5x scale

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.