Home / 171,551.18-257,239.02-71,684.12

Finding the Fourth Proportional to 171,551.18, 257,239.02 and 71,684.12

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Solution

The fourth proportional to 171,551.18, 257,239.02 and 71,684.12 is: 107,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,551.18 : 257,239.02 = 71,684.12 : x
  2. Step 2: Convert to fraction form
    171,551.18/257,239.02 = 71,684.12/x
  3. Step 3: Cross multiply
    171,551.18x = 257,239.02 × 71,684.12
  4. Step 4: Simplify right side
    171,551.18x = 18,439,952,778.36
  5. Step 5: Solve for x
    x = 18,439,952,778.36/171,551.18
  6. Step 6: Final answer
    x = 107,489.51

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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.