Home / 147,226.50-203,172.84-80,158.50

Finding the Fourth Proportional to 147,226.50, 203,172.84 and 80,158.50

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Solution

The fourth proportional to 147,226.50, 203,172.84 and 80,158.50 is: 110,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,226.50 : 203,172.84 = 80,158.50 : x
  2. Step 2: Convert to fraction form
    147,226.50/203,172.84 = 80,158.50/x
  3. Step 3: Cross multiply
    147,226.50x = 203,172.84 × 80,158.50
  4. Step 4: Simplify right side
    147,226.50x = 16,286,030,095.14
  5. Step 5: Solve for x
    x = 16,286,030,095.14/147,226.50
  6. Step 6: Final answer
    x = 110,618.88

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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.