Home / 203,721.57-281,133-113,077.35

Finding the Fourth Proportional to 203,721.57, 281,133 and 113,077.35

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Solution

The fourth proportional to 203,721.57, 281,133 and 113,077.35 is: 156,045.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,721.57 : 281,133 = 113,077.35 : x
  2. Step 2: Convert to fraction form
    203,721.57/281,133 = 113,077.35/x
  3. Step 3: Cross multiply
    203,721.57x = 281,133 × 113,077.35
  4. Step 4: Simplify right side
    203,721.57x = 31,789,774,637.55
  5. Step 5: Solve for x
    x = 31,789,774,637.55/203,721.57
  6. Step 6: Final answer
    x = 156,045.21

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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.