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Finding the Fourth Proportional to 122,804.73, 169,415.37 and 75,049.20

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Solution

The fourth proportional to 122,804.73, 169,415.37 and 75,049.20 is: 103,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,804.73 : 169,415.37 = 75,049.20 : x
  2. Step 2: Convert to fraction form
    122,804.73/169,415.37 = 75,049.20/x
  3. Step 3: Cross multiply
    122,804.73x = 169,415.37 × 75,049.20
  4. Step 4: Simplify right side
    122,804.73x = 12,714,487,986.20
  5. Step 5: Solve for x
    x = 12,714,487,986.20/122,804.73
  6. Step 6: Final answer
    x = 103,534.19

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1.5x scale

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.