Home / 189,172.66-261,179.85-117,650.02

Finding the Fourth Proportional to 189,172.66, 261,179.85 and 117,650.02

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Solution

The fourth proportional to 189,172.66, 261,179.85 and 117,650.02 is: 162,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,172.66 : 261,179.85 = 117,650.02 : x
  2. Step 2: Convert to fraction form
    189,172.66/261,179.85 = 117,650.02/x
  3. Step 3: Cross multiply
    189,172.66x = 261,179.85 × 117,650.02
  4. Step 4: Simplify right side
    189,172.66x = 30,727,814,576.10
  5. Step 5: Solve for x
    x = 30,727,814,576.10/189,172.66
  6. Step 6: Final answer
    x = 162,432.64

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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.