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Finding the Fourth Proportional to 135,753.33, 187,336.73 and 75,322.67

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Solution

The fourth proportional to 135,753.33, 187,336.73 and 75,322.67 is: 103,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,753.33 : 187,336.73 = 75,322.67 : x
  2. Step 2: Convert to fraction form
    135,753.33/187,336.73 = 75,322.67/x
  3. Step 3: Cross multiply
    135,753.33x = 187,336.73 × 75,322.67
  4. Step 4: Simplify right side
    135,753.33x = 14,110,701,379.37
  5. Step 5: Solve for x
    x = 14,110,701,379.37/135,753.33
  6. Step 6: Final answer
    x = 103,943.69

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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.