Home / 135,583.83-187,090.29-75,149.73

Finding the Fourth Proportional to 135,583.83, 187,090.29 and 75,149.73

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Solution

The fourth proportional to 135,583.83, 187,090.29 and 75,149.73 is: 103,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,583.83 : 187,090.29 = 75,149.73 : x
  2. Step 2: Convert to fraction form
    135,583.83/187,090.29 = 75,149.73/x
  3. Step 3: Cross multiply
    135,583.83x = 187,090.29 × 75,149.73
  4. Step 4: Simplify right side
    135,583.83x = 14,059,784,779.12
  5. Step 5: Solve for x
    x = 14,059,784,779.12/135,583.83
  6. Step 6: Final answer
    x = 103,698.09

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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.