Home / 120,475.83-180,879.27-61,351.23

Finding the Fourth Proportional to 120,475.83, 180,879.27 and 61,351.23

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Solution

The fourth proportional to 120,475.83, 180,879.27 and 61,351.23 is: 92,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.83 : 180,879.27 = 61,351.23 : x
  2. Step 2: Convert to fraction form
    120,475.83/180,879.27 = 61,351.23/x
  3. Step 3: Cross multiply
    120,475.83x = 180,879.27 × 61,351.23
  4. Step 4: Simplify right side
    120,475.83x = 11,097,165,696.00
  5. Step 5: Solve for x
    x = 11,097,165,696.00/120,475.83
  6. Step 6: Final answer
    x = 92,111.14

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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.