Home / 82,990.10-124,302.26-68,595.14

Finding the Fourth Proportional to 82,990.10, 124,302.26 and 68,595.14

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Solution

The fourth proportional to 82,990.10, 124,302.26 and 68,595.14 is: 102,741.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,990.10 : 124,302.26 = 68,595.14 : x
  2. Step 2: Convert to fraction form
    82,990.10/124,302.26 = 68,595.14/x
  3. Step 3: Cross multiply
    82,990.10x = 124,302.26 × 68,595.14
  4. Step 4: Simplify right side
    82,990.10x = 8,526,530,927.02
  5. Step 5: Solve for x
    x = 8,526,530,927.02/82,990.10
  6. Step 6: Final answer
    x = 102,741.54

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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.