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Finding the Fourth Proportional to 172,343.88, 237,826.85 and 99,735.26

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Solution

The fourth proportional to 172,343.88, 237,826.85 and 99,735.26 is: 137,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,343.88 : 237,826.85 = 99,735.26 : x
  2. Step 2: Convert to fraction form
    172,343.88/237,826.85 = 99,735.26/x
  3. Step 3: Cross multiply
    172,343.88x = 237,826.85 × 99,735.26
  4. Step 4: Simplify right side
    172,343.88x = 23,719,721,031.92
  5. Step 5: Solve for x
    x = 23,719,721,031.92/172,343.88
  6. Step 6: Final answer
    x = 137,630.19

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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.