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Finding the Fourth Proportional to 171,473.68, 257,604.72 and 120,988.90

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Solution

The fourth proportional to 171,473.68, 257,604.72 and 120,988.90 is: 181,761.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,473.68 : 257,604.72 = 120,988.90 : x
  2. Step 2: Convert to fraction form
    171,473.68/257,604.72 = 120,988.90/x
  3. Step 3: Cross multiply
    171,473.68x = 257,604.72 × 120,988.90
  4. Step 4: Simplify right side
    171,473.68x = 31,167,311,707.61
  5. Step 5: Solve for x
    x = 31,167,311,707.61/171,473.68
  6. Step 6: Final answer
    x = 181,761.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.