Home / 135,537.40-187,047.56-75,107.90

Finding the Fourth Proportional to 135,537.40, 187,047.56 and 75,107.90

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Solution

The fourth proportional to 135,537.40, 187,047.56 and 75,107.90 is: 103,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,537.40 : 187,047.56 = 75,107.90 : x
  2. Step 2: Convert to fraction form
    135,537.40/187,047.56 = 75,107.90/x
  3. Step 3: Cross multiply
    135,537.40x = 187,047.56 × 75,107.90
  4. Step 4: Simplify right side
    135,537.40x = 14,048,749,431.72
  5. Step 5: Solve for x
    x = 14,048,749,431.72/135,537.40
  6. Step 6: Final answer
    x = 103,652.20

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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.