Home / 135,636.37-187,178.57-75,211.27

Finding the Fourth Proportional to 135,636.37, 187,178.57 and 75,211.27

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Solution

The fourth proportional to 135,636.37, 187,178.57 and 75,211.27 is: 103,791.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,636.37 : 187,178.57 = 75,211.27 : x
  2. Step 2: Convert to fraction form
    135,636.37/187,178.57 = 75,211.27/x
  3. Step 3: Cross multiply
    135,636.37x = 187,178.57 × 75,211.27
  4. Step 4: Simplify right side
    135,636.37x = 14,077,937,966.48
  5. Step 5: Solve for x
    x = 14,077,937,966.48/135,636.37
  6. Step 6: Final answer
    x = 103,791.76

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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.