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Finding the Fourth Proportional to 135,472.72, 203,340.28 and 65,401.24

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Solution

The fourth proportional to 135,472.72, 203,340.28 and 65,401.24 is: 98,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,472.72 : 203,340.28 = 65,401.24 : x
  2. Step 2: Convert to fraction form
    135,472.72/203,340.28 = 65,401.24/x
  3. Step 3: Cross multiply
    135,472.72x = 203,340.28 × 65,401.24
  4. Step 4: Simplify right side
    135,472.72x = 13,298,706,453.95
  5. Step 5: Solve for x
    x = 13,298,706,453.95/135,472.72
  6. Step 6: Final answer
    x = 98,165.20

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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.