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Finding the Fourth Proportional to 147,277.89, 203,243.46 and 80,209.89

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Solution

The fourth proportional to 147,277.89, 203,243.46 and 80,209.89 is: 110,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,277.89 : 203,243.46 = 80,209.89 : x
  2. Step 2: Convert to fraction form
    147,277.89/203,243.46 = 80,209.89/x
  3. Step 3: Cross multiply
    147,277.89x = 203,243.46 × 80,209.89
  4. Step 4: Simplify right side
    147,277.89x = 16,302,135,569.82
  5. Step 5: Solve for x
    x = 16,302,135,569.82/147,277.89
  6. Step 6: Final answer
    x = 110,689.63

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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.