Home / 135,537.45-187,042.78-75,109.10

Finding the Fourth Proportional to 135,537.45, 187,042.78 and 75,109.10

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Solution

The fourth proportional to 135,537.45, 187,042.78 and 75,109.10 is: 103,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,537.45 : 187,042.78 = 75,109.10 : x
  2. Step 2: Convert to fraction form
    135,537.45/187,042.78 = 75,109.10/x
  3. Step 3: Cross multiply
    135,537.45x = 187,042.78 × 75,109.10
  4. Step 4: Simplify right side
    135,537.45x = 14,048,614,867.30
  5. Step 5: Solve for x
    x = 14,048,614,867.30/135,537.45
  6. Step 6: Final answer
    x = 103,651.17

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1.5x scale

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.