Home / 122,559.74-169,150.86-74,840.62

Finding the Fourth Proportional to 122,559.74, 169,150.86 and 74,840.62

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Solution

The fourth proportional to 122,559.74, 169,150.86 and 74,840.62 is: 103,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,559.74 : 169,150.86 = 74,840.62 : x
  2. Step 2: Convert to fraction form
    122,559.74/169,150.86 = 74,840.62/x
  3. Step 3: Cross multiply
    122,559.74x = 169,150.86 × 74,840.62
  4. Step 4: Simplify right side
    122,559.74x = 12,659,354,015.98
  5. Step 5: Solve for x
    x = 12,659,354,015.98/122,559.74
  6. Step 6: Final answer
    x = 103,291.29

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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.