Home / 135,469.10-186,939.96-75,035

Finding the Fourth Proportional to 135,469.10, 186,939.96 and 75,035

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Solution

The fourth proportional to 135,469.10, 186,939.96 and 75,035 is: 103,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,469.10 : 186,939.96 = 75,035 : x
  2. Step 2: Convert to fraction form
    135,469.10/186,939.96 = 75,035/x
  3. Step 3: Cross multiply
    135,469.10x = 186,939.96 × 75,035
  4. Step 4: Simplify right side
    135,469.10x = 14,027,039,898.60
  5. Step 5: Solve for x
    x = 14,027,039,898.60/135,469.10
  6. Step 6: Final answer
    x = 103,544.20

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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.