Home / 122,654.87-183,615.60-75,120.29

Finding the Fourth Proportional to 122,654.87, 183,615.60 and 75,120.29

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Solution

The fourth proportional to 122,654.87, 183,615.60 and 75,120.29 is: 112,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,654.87 : 183,615.60 = 75,120.29 : x
  2. Step 2: Convert to fraction form
    122,654.87/183,615.60 = 75,120.29/x
  3. Step 3: Cross multiply
    122,654.87x = 183,615.60 × 75,120.29
  4. Step 4: Simplify right side
    122,654.87x = 13,793,257,120.52
  5. Step 5: Solve for x
    x = 13,793,257,120.52/122,654.87
  6. Step 6: Final answer
    x = 112,455.85

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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.