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Finding the Fourth Proportional to 135,941.30, 203,911.95 and 123,256.70

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Solution

The fourth proportional to 135,941.30, 203,911.95 and 123,256.70 is: 184,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,941.30 : 203,911.95 = 123,256.70 : x
  2. Step 2: Convert to fraction form
    135,941.30/203,911.95 = 123,256.70/x
  3. Step 3: Cross multiply
    135,941.30x = 203,911.95 × 123,256.70
  4. Step 4: Simplify right side
    135,941.30x = 25,133,514,047.57
  5. Step 5: Solve for x
    x = 25,133,514,047.57/135,941.30
  6. Step 6: Final answer
    x = 184,885.05

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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.