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Finding the Fourth Proportional to 171,625.96, 257,476.38 and 71,790.76

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Solution

The fourth proportional to 171,625.96, 257,476.38 and 71,790.76 is: 107,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,625.96 : 257,476.38 = 71,790.76 : x
  2. Step 2: Convert to fraction form
    171,625.96/257,476.38 = 71,790.76/x
  3. Step 3: Cross multiply
    171,625.96x = 257,476.38 × 71,790.76
  4. Step 4: Simplify right side
    171,625.96x = 18,484,425,002.25
  5. Step 5: Solve for x
    x = 18,484,425,002.25/171,625.96
  6. Step 6: Final answer
    x = 107,701.80

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1.5x scale

Why These Related Problems?

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