Home / 122,984.32-169,731.12-75,269.44

Finding the Fourth Proportional to 122,984.32, 169,731.12 and 75,269.44

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Solution

The fourth proportional to 122,984.32, 169,731.12 and 75,269.44 is: 103,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,984.32 : 169,731.12 = 75,269.44 : x
  2. Step 2: Convert to fraction form
    122,984.32/169,731.12 = 75,269.44/x
  3. Step 3: Cross multiply
    122,984.32x = 169,731.12 × 75,269.44
  4. Step 4: Simplify right side
    122,984.32x = 12,775,566,352.97
  5. Step 5: Solve for x
    x = 12,775,566,352.97/122,984.32
  6. Step 6: Final answer
    x = 103,879.64

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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.