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Finding the Fourth Proportional to 147,851.76, 204,035.31 and 80,783.76

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Solution

The fourth proportional to 147,851.76, 204,035.31 and 80,783.76 is: 111,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,851.76 : 204,035.31 = 80,783.76 : x
  2. Step 2: Convert to fraction form
    147,851.76/204,035.31 = 80,783.76/x
  3. Step 3: Cross multiply
    147,851.76x = 204,035.31 × 80,783.76
  4. Step 4: Simplify right side
    147,851.76x = 16,482,739,514.57
  5. Step 5: Solve for x
    x = 16,482,739,514.57/147,851.76
  6. Step 6: Final answer
    x = 111,481.52

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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.