Home / 135,533.86-187,037.82-75,105.50

Finding the Fourth Proportional to 135,533.86, 187,037.82 and 75,105.50

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Solution

The fourth proportional to 135,533.86, 187,037.82 and 75,105.50 is: 103,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,533.86 : 187,037.82 = 75,105.50 : x
  2. Step 2: Convert to fraction form
    135,533.86/187,037.82 = 75,105.50/x
  3. Step 3: Cross multiply
    135,533.86x = 187,037.82 × 75,105.50
  4. Step 4: Simplify right side
    135,533.86x = 14,047,568,802.25
  5. Step 5: Solve for x
    x = 14,047,568,802.25/135,533.86
  6. Step 6: Final answer
    x = 103,646.20

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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.