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Finding the Fourth Proportional to 109,726, 151,421.88 and 59,425

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Solution

The fourth proportional to 109,726, 151,421.88 and 59,425 is: 82,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726 : 151,421.88 = 59,425 : x
  2. Step 2: Convert to fraction form
    109,726/151,421.88 = 59,425/x
  3. Step 3: Cross multiply
    109,726x = 151,421.88 × 59,425
  4. Step 4: Simplify right side
    109,726x = 8,998,245,219
  5. Step 5: Solve for x
    x = 8,998,245,219/109,726
  6. Step 6: Final answer
    x = 82,006.50

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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.