Home / 203,016.33-280,158.66-112,372.38

Finding the Fourth Proportional to 203,016.33, 280,158.66 and 112,372.38

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Solution

The fourth proportional to 203,016.33, 280,158.66 and 112,372.38 is: 155,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,016.33 : 280,158.66 = 112,372.38 : x
  2. Step 2: Convert to fraction form
    203,016.33/280,158.66 = 112,372.38/x
  3. Step 3: Cross multiply
    203,016.33x = 280,158.66 × 112,372.38
  4. Step 4: Simplify right side
    203,016.33x = 31,482,095,401.81
  5. Step 5: Solve for x
    x = 31,482,095,401.81/203,016.33
  6. Step 6: Final answer
    x = 155,071.74

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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.