Home / 171,666.45-257,513.68-86,233.36

Finding the Fourth Proportional to 171,666.45, 257,513.68 and 86,233.36

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Solution

The fourth proportional to 171,666.45, 257,513.68 and 86,233.36 is: 129,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,666.45 : 257,513.68 = 86,233.36 : x
  2. Step 2: Convert to fraction form
    171,666.45/257,513.68 = 86,233.36/x
  3. Step 3: Cross multiply
    171,666.45x = 257,513.68 × 86,233.36
  4. Step 4: Simplify right side
    171,666.45x = 22,206,269,336.37
  5. Step 5: Solve for x
    x = 22,206,269,336.37/171,666.45
  6. Step 6: Final answer
    x = 129,357.07

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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.