Home / 139,349.26-208,877.46-68,173.60

Finding the Fourth Proportional to 139,349.26, 208,877.46 and 68,173.60

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Solution

The fourth proportional to 139,349.26, 208,877.46 and 68,173.60 is: 102,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.26 : 208,877.46 = 68,173.60 : x
  2. Step 2: Convert to fraction form
    139,349.26/208,877.46 = 68,173.60/x
  3. Step 3: Cross multiply
    139,349.26x = 208,877.46 × 68,173.60
  4. Step 4: Simplify right side
    139,349.26x = 14,239,928,407.06
  5. Step 5: Solve for x
    x = 14,239,928,407.06/139,349.26
  6. Step 6: Final answer
    x = 102,188.76

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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.