Home / 74,195.08-102,404.66-68,217.28

Finding the Fourth Proportional to 74,195.08, 102,404.66 and 68,217.28

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Solution

The fourth proportional to 74,195.08, 102,404.66 and 68,217.28 is: 94,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195.08 : 102,404.66 = 68,217.28 : x
  2. Step 2: Convert to fraction form
    74,195.08/102,404.66 = 68,217.28/x
  3. Step 3: Cross multiply
    74,195.08x = 102,404.66 × 68,217.28
  4. Step 4: Simplify right side
    74,195.08x = 6,985,766,511.42
  5. Step 5: Solve for x
    x = 6,985,766,511.42/74,195.08
  6. Step 6: Final answer
    x = 94,154.05

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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.