Home / 178,764.12-268,144.70-72,146.44

Finding the Fourth Proportional to 178,764.12, 268,144.70 and 72,146.44

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Solution

The fourth proportional to 178,764.12, 268,144.70 and 72,146.44 is: 108,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,764.12 : 268,144.70 = 72,146.44 : x
  2. Step 2: Convert to fraction form
    178,764.12/268,144.70 = 72,146.44/x
  3. Step 3: Cross multiply
    178,764.12x = 268,144.70 × 72,146.44
  4. Step 4: Simplify right side
    178,764.12x = 19,345,685,509.87
  5. Step 5: Solve for x
    x = 19,345,685,509.87/178,764.12
  6. Step 6: Final answer
    x = 108,219.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.