Home / 206,316.34-309,372.36-73,176.64

Finding the Fourth Proportional to 206,316.34, 309,372.36 and 73,176.64

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Solution

The fourth proportional to 206,316.34, 309,372.36 and 73,176.64 is: 109,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,316.34 : 309,372.36 = 73,176.64 : x
  2. Step 2: Convert to fraction form
    206,316.34/309,372.36 = 73,176.64/x
  3. Step 3: Cross multiply
    206,316.34x = 309,372.36 × 73,176.64
  4. Step 4: Simplify right side
    206,316.34x = 22,638,829,813.67
  5. Step 5: Solve for x
    x = 22,638,829,813.67/206,316.34
  6. Step 6: Final answer
    x = 109,728.73

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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.