Home / 113,115.63-169,415.05-53,992.92

Finding the Fourth Proportional to 113,115.63, 169,415.05 and 53,992.92

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Solution

The fourth proportional to 113,115.63, 169,415.05 and 53,992.92 is: 80,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,115.63 : 169,415.05 = 53,992.92 : x
  2. Step 2: Convert to fraction form
    113,115.63/169,415.05 = 53,992.92/x
  3. Step 3: Cross multiply
    113,115.63x = 169,415.05 × 53,992.92
  4. Step 4: Simplify right side
    113,115.63x = 9,147,213,241.45
  5. Step 5: Solve for x
    x = 9,147,213,241.45/113,115.63
  6. Step 6: Final answer
    x = 80,866.04

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1.5x scale

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.