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Finding the Fourth Proportional to 139,975.92, 210,085.20 and 73,463.04

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Solution

The fourth proportional to 139,975.92, 210,085.20 and 73,463.04 is: 110,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,975.92 : 210,085.20 = 73,463.04 : x
  2. Step 2: Convert to fraction form
    139,975.92/210,085.20 = 73,463.04/x
  3. Step 3: Cross multiply
    139,975.92x = 210,085.20 × 73,463.04
  4. Step 4: Simplify right side
    139,975.92x = 15,433,497,451.01
  5. Step 5: Solve for x
    x = 15,433,497,451.01/139,975.92
  6. Step 6: Final answer
    x = 110,258.23

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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.