Home / 135,563.40-187,077.52-75,137.94

Finding the Fourth Proportional to 135,563.40, 187,077.52 and 75,137.94

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Solution

The fourth proportional to 135,563.40, 187,077.52 and 75,137.94 is: 103,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,563.40 : 187,077.52 = 75,137.94 : x
  2. Step 2: Convert to fraction form
    135,563.40/187,077.52 = 75,137.94/x
  3. Step 3: Cross multiply
    135,563.40x = 187,077.52 × 75,137.94
  4. Step 4: Simplify right side
    135,563.40x = 14,056,619,473.11
  5. Step 5: Solve for x
    x = 14,056,619,473.11/135,563.40
  6. Step 6: Final answer
    x = 103,690.37

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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.