Home / 153,285.24-230,039.64-78,467.97

Finding the Fourth Proportional to 153,285.24, 230,039.64 and 78,467.97

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Solution

The fourth proportional to 153,285.24, 230,039.64 and 78,467.97 is: 117,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,285.24 : 230,039.64 = 78,467.97 : x
  2. Step 2: Convert to fraction form
    153,285.24/230,039.64 = 78,467.97/x
  3. Step 3: Cross multiply
    153,285.24x = 230,039.64 × 78,467.97
  4. Step 4: Simplify right side
    153,285.24x = 18,050,743,570.33
  5. Step 5: Solve for x
    x = 18,050,743,570.33/153,285.24
  6. Step 6: Final answer
    x = 117,759.18

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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.