Home / 79,623.40-119,435.10-68,542.60

Finding the Fourth Proportional to 79,623.40, 119,435.10 and 68,542.60

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Solution

The fourth proportional to 79,623.40, 119,435.10 and 68,542.60 is: 102,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.40 : 119,435.10 = 68,542.60 : x
  2. Step 2: Convert to fraction form
    79,623.40/119,435.10 = 68,542.60/x
  3. Step 3: Cross multiply
    79,623.40x = 119,435.10 × 68,542.60
  4. Step 4: Simplify right side
    79,623.40x = 8,186,392,285.26
  5. Step 5: Solve for x
    x = 8,186,392,285.26/79,623.40
  6. Step 6: Final answer
    x = 102,813.90

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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.