Home / 203,155.27-280,400.92-135,175.10

Finding the Fourth Proportional to 203,155.27, 280,400.92 and 135,175.10

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Solution

The fourth proportional to 203,155.27, 280,400.92 and 135,175.10 is: 186,572.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,155.27 : 280,400.92 = 135,175.10 : x
  2. Step 2: Convert to fraction form
    203,155.27/280,400.92 = 135,175.10/x
  3. Step 3: Cross multiply
    203,155.27x = 280,400.92 × 135,175.10
  4. Step 4: Simplify right side
    203,155.27x = 37,903,220,661.15
  5. Step 5: Solve for x
    x = 37,903,220,661.15/203,155.27
  6. Step 6: Final answer
    x = 186,572.67

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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.