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Finding the Fourth Proportional to 101,771.70, 152,632.66 and 79,529.91

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Solution

The fourth proportional to 101,771.70, 152,632.66 and 79,529.91 is: 119,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,771.70 : 152,632.66 = 79,529.91 : x
  2. Step 2: Convert to fraction form
    101,771.70/152,632.66 = 79,529.91/x
  3. Step 3: Cross multiply
    101,771.70x = 152,632.66 × 79,529.91
  4. Step 4: Simplify right side
    101,771.70x = 12,138,861,712.86
  5. Step 5: Solve for x
    x = 12,138,861,712.86/101,771.70
  6. Step 6: Final answer
    x = 119,275.41

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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.