Home / 82,826.20-124,092.90-80,085.40

Finding the Fourth Proportional to 82,826.20, 124,092.90 and 80,085.40

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Solution

The fourth proportional to 82,826.20, 124,092.90 and 80,085.40 is: 119,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,826.20 : 124,092.90 = 80,085.40 : x
  2. Step 2: Convert to fraction form
    82,826.20/124,092.90 = 80,085.40/x
  3. Step 3: Cross multiply
    82,826.20x = 124,092.90 × 80,085.40
  4. Step 4: Simplify right side
    82,826.20x = 9,938,029,533.66
  5. Step 5: Solve for x
    x = 9,938,029,533.66/82,826.20
  6. Step 6: Final answer
    x = 119,986.54

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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.