Home / 135,710.21-187,264.97-75,265.71

Finding the Fourth Proportional to 135,710.21, 187,264.97 and 75,265.71

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Solution

The fourth proportional to 135,710.21, 187,264.97 and 75,265.71 is: 103,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,710.21 : 187,264.97 = 75,265.71 : x
  2. Step 2: Convert to fraction form
    135,710.21/187,264.97 = 75,265.71/x
  3. Step 3: Cross multiply
    135,710.21x = 187,264.97 × 75,265.71
  4. Step 4: Simplify right side
    135,710.21x = 14,094,630,340.54
  5. Step 5: Solve for x
    x = 14,094,630,340.54/135,710.21
  6. Step 6: Final answer
    x = 103,858.29

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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.