Home / 135,533.60-187,037.47-75,105.25

Finding the Fourth Proportional to 135,533.60, 187,037.47 and 75,105.25

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Solution

The fourth proportional to 135,533.60, 187,037.47 and 75,105.25 is: 103,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,533.60 : 187,037.47 = 75,105.25 : x
  2. Step 2: Convert to fraction form
    135,533.60/187,037.47 = 75,105.25/x
  3. Step 3: Cross multiply
    135,533.60x = 187,037.47 × 75,105.25
  4. Step 4: Simplify right side
    135,533.60x = 14,047,496,096.05
  5. Step 5: Solve for x
    x = 14,047,496,096.05/135,533.60
  6. Step 6: Final answer
    x = 103,645.85

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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.