Home / 113,128.20-169,466.02-68,124.60

Finding the Fourth Proportional to 113,128.20, 169,466.02 and 68,124.60

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Solution

The fourth proportional to 113,128.20, 169,466.02 and 68,124.60 is: 102,050.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,128.20 : 169,466.02 = 68,124.60 : x
  2. Step 2: Convert to fraction form
    113,128.20/169,466.02 = 68,124.60/x
  3. Step 3: Cross multiply
    113,128.20x = 169,466.02 × 68,124.60
  4. Step 4: Simplify right side
    113,128.20x = 11,544,804,826.09
  5. Step 5: Solve for x
    x = 11,544,804,826.09/113,128.20
  6. Step 6: Final answer
    x = 102,050.64

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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.