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Finding the Fourth Proportional to 152,311.71, 210,183.30 and 84,323.91

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Solution

The fourth proportional to 152,311.71, 210,183.30 and 84,323.91 is: 116,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,311.71 : 210,183.30 = 84,323.91 : x
  2. Step 2: Convert to fraction form
    152,311.71/210,183.30 = 84,323.91/x
  3. Step 3: Cross multiply
    152,311.71x = 210,183.30 × 84,323.91
  4. Step 4: Simplify right side
    152,311.71x = 17,723,477,672.70
  5. Step 5: Solve for x
    x = 17,723,477,672.70/152,311.71
  6. Step 6: Final answer
    x = 116,363.20

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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.