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Finding the Fourth Proportional to 172,099.64, 237,401.88 and 159,921.84

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Solution

The fourth proportional to 172,099.64, 237,401.88 and 159,921.84 is: 220,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,099.64 : 237,401.88 = 159,921.84 : x
  2. Step 2: Convert to fraction form
    172,099.64/237,401.88 = 159,921.84/x
  3. Step 3: Cross multiply
    172,099.64x = 237,401.88 × 159,921.84
  4. Step 4: Simplify right side
    172,099.64x = 37,965,745,469.06
  5. Step 5: Solve for x
    x = 37,965,745,469.06/172,099.64
  6. Step 6: Final answer
    x = 220,603.28

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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.