Home / 171,917.93-257,932.94-86,484.70

Finding the Fourth Proportional to 171,917.93, 257,932.94 and 86,484.70

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Solution

The fourth proportional to 171,917.93, 257,932.94 and 86,484.70 is: 129,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,917.93 : 257,932.94 = 86,484.70 : x
  2. Step 2: Convert to fraction form
    171,917.93/257,932.94 = 86,484.70/x
  3. Step 3: Cross multiply
    171,917.93x = 257,932.94 × 86,484.70
  4. Step 4: Simplify right side
    171,917.93x = 22,307,251,858.76
  5. Step 5: Solve for x
    x = 22,307,251,858.76/171,917.93
  6. Step 6: Final answer
    x = 129,755.24

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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.