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Finding the Fourth Proportional to 147,474.63, 203,515.19 and 80,406.63

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Solution

The fourth proportional to 147,474.63, 203,515.19 and 80,406.63 is: 110,961.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,474.63 : 203,515.19 = 80,406.63 : x
  2. Step 2: Convert to fraction form
    147,474.63/203,515.19 = 80,406.63/x
  3. Step 3: Cross multiply
    147,474.63x = 203,515.19 × 80,406.63
  4. Step 4: Simplify right side
    147,474.63x = 16,363,970,581.71
  5. Step 5: Solve for x
    x = 16,363,970,581.71/147,474.63
  6. Step 6: Final answer
    x = 110,961.26

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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.