Home / 135,388.92-203,315.70-83,105.40

Finding the Fourth Proportional to 135,388.92, 203,315.70 and 83,105.40

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Solution

The fourth proportional to 135,388.92, 203,315.70 and 83,105.40 is: 124,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,388.92 : 203,315.70 = 83,105.40 : x
  2. Step 2: Convert to fraction form
    135,388.92/203,315.70 = 83,105.40/x
  3. Step 3: Cross multiply
    135,388.92x = 203,315.70 × 83,105.40
  4. Step 4: Simplify right side
    135,388.92x = 16,896,632,574.78
  5. Step 5: Solve for x
    x = 16,896,632,574.78/135,388.92
  6. Step 6: Final answer
    x = 124,800.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.