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Finding the Fourth Proportional to 147,474.62, 203,515.18 and 80,406.62

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Solution

The fourth proportional to 147,474.62, 203,515.18 and 80,406.62 is: 110,961.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,474.62 : 203,515.18 = 80,406.62 : x
  2. Step 2: Convert to fraction form
    147,474.62/203,515.18 = 80,406.62/x
  3. Step 3: Cross multiply
    147,474.62x = 203,515.18 × 80,406.62
  4. Step 4: Simplify right side
    147,474.62x = 16,363,967,742.49
  5. Step 5: Solve for x
    x = 16,363,967,742.49/147,474.62
  6. Step 6: Final answer
    x = 110,961.25

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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.