Home / 145,976.78-201,448.00-82,314.60

Finding the Fourth Proportional to 145,976.78, 201,448.00 and 82,314.60

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Solution

The fourth proportional to 145,976.78, 201,448.00 and 82,314.60 is: 113,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,976.78 : 201,448.00 = 82,314.60 : x
  2. Step 2: Convert to fraction form
    145,976.78/201,448.00 = 82,314.60/x
  3. Step 3: Cross multiply
    145,976.78x = 201,448.00 × 82,314.60
  4. Step 4: Simplify right side
    145,976.78x = 16,582,110,425.24
  5. Step 5: Solve for x
    x = 16,582,110,425.24/145,976.78
  6. Step 6: Final answer
    x = 113,594.16

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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.