Home / 113,512.08-170,418.62-96,978.36

Finding the Fourth Proportional to 113,512.08, 170,418.62 and 96,978.36

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Solution

The fourth proportional to 113,512.08, 170,418.62 and 96,978.36 is: 145,596.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,512.08 : 170,418.62 = 96,978.36 : x
  2. Step 2: Convert to fraction form
    113,512.08/170,418.62 = 96,978.36/x
  3. Step 3: Cross multiply
    113,512.08x = 170,418.62 × 96,978.36
  4. Step 4: Simplify right side
    113,512.08x = 16,526,918,281.06
  5. Step 5: Solve for x
    x = 16,526,918,281.06/113,512.08
  6. Step 6: Final answer
    x = 145,596.12

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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.