Home / 135,500.36-186,979.52-75,073.56

Finding the Fourth Proportional to 135,500.36, 186,979.52 and 75,073.56

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Solution

The fourth proportional to 135,500.36, 186,979.52 and 75,073.56 is: 103,595.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,500.36 : 186,979.52 = 75,073.56 : x
  2. Step 2: Convert to fraction form
    135,500.36/186,979.52 = 75,073.56/x
  3. Step 3: Cross multiply
    135,500.36x = 186,979.52 × 75,073.56
  4. Step 4: Simplify right side
    135,500.36x = 14,037,218,213.49
  5. Step 5: Solve for x
    x = 14,037,218,213.49/135,500.36
  6. Step 6: Final answer
    x = 103,595.43

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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.