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Finding the Fourth Proportional to 172,956.40, 259,434.60 and 60,763.30

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Solution

The fourth proportional to 172,956.40, 259,434.60 and 60,763.30 is: 91,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,956.40 : 259,434.60 = 60,763.30 : x
  2. Step 2: Convert to fraction form
    172,956.40/259,434.60 = 60,763.30/x
  3. Step 3: Cross multiply
    172,956.40x = 259,434.60 × 60,763.30
  4. Step 4: Simplify right side
    172,956.40x = 15,764,102,430.18
  5. Step 5: Solve for x
    x = 15,764,102,430.18/172,956.40
  6. Step 6: Final answer
    x = 91,144.95

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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.