Home / 166,590-229,899.60-91,138.50

Finding the Fourth Proportional to 166,590, 229,899.60 and 91,138.50

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Solution

The fourth proportional to 166,590, 229,899.60 and 91,138.50 is: 125,774.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,590 : 229,899.60 = 91,138.50 : x
  2. Step 2: Convert to fraction form
    166,590/229,899.60 = 91,138.50/x
  3. Step 3: Cross multiply
    166,590x = 229,899.60 × 91,138.50
  4. Step 4: Simplify right side
    166,590x = 20,952,704,694.60
  5. Step 5: Solve for x
    x = 20,952,704,694.60/166,590
  6. Step 6: Final answer
    x = 125,774.08

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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.