Home / 139,137.44-208,546.16-60,172.32

Finding the Fourth Proportional to 139,137.44, 208,546.16 and 60,172.32

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Solution

The fourth proportional to 139,137.44, 208,546.16 and 60,172.32 is: 90,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,137.44 : 208,546.16 = 60,172.32 : x
  2. Step 2: Convert to fraction form
    139,137.44/208,546.16 = 60,172.32/x
  3. Step 3: Cross multiply
    139,137.44x = 208,546.16 × 60,172.32
  4. Step 4: Simplify right side
    139,137.44x = 12,548,706,274.29
  5. Step 5: Solve for x
    x = 12,548,706,274.29/139,137.44
  6. Step 6: Final answer
    x = 90,189.29

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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.