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Finding the Fourth Proportional to 147,281.57, 203,248.56 and 80,213.57

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Solution

The fourth proportional to 147,281.57, 203,248.56 and 80,213.57 is: 110,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,281.57 : 203,248.56 = 80,213.57 : x
  2. Step 2: Convert to fraction form
    147,281.57/203,248.56 = 80,213.57/x
  3. Step 3: Cross multiply
    147,281.57x = 203,248.56 × 80,213.57
  4. Step 4: Simplify right side
    147,281.57x = 16,303,292,594.96
  5. Step 5: Solve for x
    x = 16,303,292,594.96/147,281.57
  6. Step 6: Final answer
    x = 110,694.72

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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.