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Finding the Fourth Proportional to 139,573.53, 209,361.56 and 39,733.67

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Solution

The fourth proportional to 139,573.53, 209,361.56 and 39,733.67 is: 59,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,573.53 : 209,361.56 = 39,733.67 : x
  2. Step 2: Convert to fraction form
    139,573.53/209,361.56 = 39,733.67/x
  3. Step 3: Cross multiply
    139,573.53x = 209,361.56 × 39,733.67
  4. Step 4: Simplify right side
    139,573.53x = 8,318,703,460.46
  5. Step 5: Solve for x
    x = 8,318,703,460.46/139,573.53
  6. Step 6: Final answer
    x = 59,600.87

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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.