Home / 114,855.24-171,959.22-86,685.69

Finding the Fourth Proportional to 114,855.24, 171,959.22 and 86,685.69

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Solution

The fourth proportional to 114,855.24, 171,959.22 and 86,685.69 is: 129,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,855.24 : 171,959.22 = 86,685.69 : x
  2. Step 2: Convert to fraction form
    114,855.24/171,959.22 = 86,685.69/x
  3. Step 3: Cross multiply
    114,855.24x = 171,959.22 × 86,685.69
  4. Step 4: Simplify right side
    114,855.24x = 14,906,403,637.56
  5. Step 5: Solve for x
    x = 14,906,403,637.56/114,855.24
  6. Step 6: Final answer
    x = 129,784.27

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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.