Home / 86,606.42-119,423.19-75,177.97

Finding the Fourth Proportional to 86,606.42, 119,423.19 and 75,177.97

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Solution

The fourth proportional to 86,606.42, 119,423.19 and 75,177.97 is: 103,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,606.42 : 119,423.19 = 75,177.97 : x
  2. Step 2: Convert to fraction form
    86,606.42/119,423.19 = 75,177.97/x
  3. Step 3: Cross multiply
    86,606.42x = 119,423.19 × 75,177.97
  4. Step 4: Simplify right side
    86,606.42x = 8,977,993,015.93
  5. Step 5: Solve for x
    x = 8,977,993,015.93/86,606.42
  6. Step 6: Final answer
    x = 103,664.30

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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.