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Finding the Fourth Proportional to 173,214.96, 259,939.08 and 78,470.88

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Solution

The fourth proportional to 173,214.96, 259,939.08 and 78,470.88 is: 117,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,214.96 : 259,939.08 = 78,470.88 : x
  2. Step 2: Convert to fraction form
    173,214.96/259,939.08 = 78,470.88/x
  3. Step 3: Cross multiply
    173,214.96x = 259,939.08 × 78,470.88
  4. Step 4: Simplify right side
    173,214.96x = 20,397,648,353.99
  5. Step 5: Solve for x
    x = 20,397,648,353.99/173,214.96
  6. Step 6: Final answer
    x = 117,759.16

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1.5x scale

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.