Home / 132,021.53-182,141.85-86,723.90

Finding the Fourth Proportional to 132,021.53, 182,141.85 and 86,723.90

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Solution

The fourth proportional to 132,021.53, 182,141.85 and 86,723.90 is: 119,647.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,021.53 : 182,141.85 = 86,723.90 : x
  2. Step 2: Convert to fraction form
    132,021.53/182,141.85 = 86,723.90/x
  3. Step 3: Cross multiply
    132,021.53x = 182,141.85 × 86,723.90
  4. Step 4: Simplify right side
    132,021.53x = 15,796,051,585.22
  5. Step 5: Solve for x
    x = 15,796,051,585.22/132,021.53
  6. Step 6: Final answer
    x = 119,647.54

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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.