Home / 189,233.62-261,148.72-103,197.32

Finding the Fourth Proportional to 189,233.62, 261,148.72 and 103,197.32

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Solution

The fourth proportional to 189,233.62, 261,148.72 and 103,197.32 is: 142,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,233.62 : 261,148.72 = 103,197.32 : x
  2. Step 2: Convert to fraction form
    189,233.62/261,148.72 = 103,197.32/x
  3. Step 3: Cross multiply
    189,233.62x = 261,148.72 × 103,197.32
  4. Step 4: Simplify right side
    189,233.62x = 26,949,848,025.43
  5. Step 5: Solve for x
    x = 26,949,848,025.43/189,233.62
  6. Step 6: Final answer
    x = 142,415.75

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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.