Home / 103,680.02-143,078.41-58,968.02

Finding the Fourth Proportional to 103,680.02, 143,078.41 and 58,968.02

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Solution

The fourth proportional to 103,680.02, 143,078.41 and 58,968.02 is: 81,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.02 : 143,078.41 = 58,968.02 : x
  2. Step 2: Convert to fraction form
    103,680.02/143,078.41 = 58,968.02/x
  3. Step 3: Cross multiply
    103,680.02x = 143,078.41 × 58,968.02
  4. Step 4: Simplify right side
    103,680.02x = 8,437,050,542.45
  5. Step 5: Solve for x
    x = 8,437,050,542.45/103,680.02
  6. Step 6: Final answer
    x = 81,375.86

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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.