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Finding the Fourth Proportional to 172,425.30, 237,900.42 and 100,822.92

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Solution

The fourth proportional to 172,425.30, 237,900.42 and 100,822.92 is: 139,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,425.30 : 237,900.42 = 100,822.92 : x
  2. Step 2: Convert to fraction form
    172,425.30/237,900.42 = 100,822.92/x
  3. Step 3: Cross multiply
    172,425.30x = 237,900.42 × 100,822.92
  4. Step 4: Simplify right side
    172,425.30x = 23,985,815,013.63
  5. Step 5: Solve for x
    x = 23,985,815,013.63/172,425.30
  6. Step 6: Final answer
    x = 139,108.44

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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.