Home / 131,975.22-182,078.08-86,677.75

Finding the Fourth Proportional to 131,975.22, 182,078.08 and 86,677.75

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Solution

The fourth proportional to 131,975.22, 182,078.08 and 86,677.75 is: 119,583.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,975.22 : 182,078.08 = 86,677.75 : x
  2. Step 2: Convert to fraction form
    131,975.22/182,078.08 = 86,677.75/x
  3. Step 3: Cross multiply
    131,975.22x = 182,078.08 × 86,677.75
  4. Step 4: Simplify right side
    131,975.22x = 15,782,117,285.43
  5. Step 5: Solve for x
    x = 15,782,117,285.43/131,975.22
  6. Step 6: Final answer
    x = 119,583.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.