Home / 231,100.40-318,889.22-135,572.24

Finding the Fourth Proportional to 231,100.40, 318,889.22 and 135,572.24

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Solution

The fourth proportional to 231,100.40, 318,889.22 and 135,572.24 is: 187,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,100.40 : 318,889.22 = 135,572.24 : x
  2. Step 2: Convert to fraction form
    231,100.40/318,889.22 = 135,572.24/x
  3. Step 3: Cross multiply
    231,100.40x = 318,889.22 × 135,572.24
  4. Step 4: Simplify right side
    231,100.40x = 43,232,523,594.95
  5. Step 5: Solve for x
    x = 43,232,523,594.95/231,100.40
  6. Step 6: Final answer
    x = 187,072.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.