Home / 145,172.32-217,786.56-50,405.92

Finding the Fourth Proportional to 145,172.32, 217,786.56 and 50,405.92

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Solution

The fourth proportional to 145,172.32, 217,786.56 and 50,405.92 is: 75,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,172.32 : 217,786.56 = 50,405.92 : x
  2. Step 2: Convert to fraction form
    145,172.32/217,786.56 = 50,405.92/x
  3. Step 3: Cross multiply
    145,172.32x = 217,786.56 × 50,405.92
  4. Step 4: Simplify right side
    145,172.32x = 10,977,731,920.44
  5. Step 5: Solve for x
    x = 10,977,731,920.44/145,172.32
  6. Step 6: Final answer
    x = 75,618.63

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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.