Home / 145,977.78-201,449.38-82,315.60

Finding the Fourth Proportional to 145,977.78, 201,449.38 and 82,315.60

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Solution

The fourth proportional to 145,977.78, 201,449.38 and 82,315.60 is: 113,595.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,977.78 : 201,449.38 = 82,315.60 : x
  2. Step 2: Convert to fraction form
    145,977.78/201,449.38 = 82,315.60/x
  3. Step 3: Cross multiply
    145,977.78x = 201,449.38 × 82,315.60
  4. Step 4: Simplify right side
    145,977.78x = 16,582,426,584.33
  5. Step 5: Solve for x
    x = 16,582,426,584.33/145,977.78
  6. Step 6: Final answer
    x = 113,595.55

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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.