Home / 203,016.06-280,159.80-112,372.20

Finding the Fourth Proportional to 203,016.06, 280,159.80 and 112,372.20

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Solution

The fourth proportional to 203,016.06, 280,159.80 and 112,372.20 is: 155,072.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,016.06 : 280,159.80 = 112,372.20 : x
  2. Step 2: Convert to fraction form
    203,016.06/280,159.80 = 112,372.20/x
  3. Step 3: Cross multiply
    203,016.06x = 280,159.80 × 112,372.20
  4. Step 4: Simplify right side
    203,016.06x = 31,482,173,077.56
  5. Step 5: Solve for x
    x = 31,482,173,077.56/203,016.06
  6. Step 6: Final answer
    x = 155,072.33

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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.