Home / 178,784.75-268,172.97-90,014.42

Finding the Fourth Proportional to 178,784.75, 268,172.97 and 90,014.42

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Solution

The fourth proportional to 178,784.75, 268,172.97 and 90,014.42 is: 135,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,784.75 : 268,172.97 = 90,014.42 : x
  2. Step 2: Convert to fraction form
    178,784.75/268,172.97 = 90,014.42/x
  3. Step 3: Cross multiply
    178,784.75x = 268,172.97 × 90,014.42
  4. Step 4: Simplify right side
    178,784.75x = 24,139,434,354.23
  5. Step 5: Solve for x
    x = 24,139,434,354.23/178,784.75
  6. Step 6: Final answer
    x = 135,019.54

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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.