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Finding the Fourth Proportional to 172,353.64, 237,770.29 and 100,701.45

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Solution

The fourth proportional to 172,353.64, 237,770.29 and 100,701.45 is: 138,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,353.64 : 237,770.29 = 100,701.45 : x
  2. Step 2: Convert to fraction form
    172,353.64/237,770.29 = 100,701.45/x
  3. Step 3: Cross multiply
    172,353.64x = 237,770.29 × 100,701.45
  4. Step 4: Simplify right side
    172,353.64x = 23,943,811,529.32
  5. Step 5: Solve for x
    x = 23,943,811,529.32/172,353.64
  6. Step 6: Final answer
    x = 138,922.58

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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.