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Finding the Fourth Proportional to 139,182.23, 192,071.43 and 75,520.01

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Solution

The fourth proportional to 139,182.23, 192,071.43 and 75,520.01 is: 104,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,182.23 : 192,071.43 = 75,520.01 : x
  2. Step 2: Convert to fraction form
    139,182.23/192,071.43 = 75,520.01/x
  3. Step 3: Cross multiply
    139,182.23x = 192,071.43 × 75,520.01
  4. Step 4: Simplify right side
    139,182.23x = 14,505,235,353.96
  5. Step 5: Solve for x
    x = 14,505,235,353.96/139,182.23
  6. Step 6: Final answer
    x = 104,217.58

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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.