Home / 128,848.98-193,279.54-106,317.86

Finding the Fourth Proportional to 128,848.98, 193,279.54 and 106,317.86

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Solution

The fourth proportional to 128,848.98, 193,279.54 and 106,317.86 is: 159,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,848.98 : 193,279.54 = 106,317.86 : x
  2. Step 2: Convert to fraction form
    128,848.98/193,279.54 = 106,317.86/x
  3. Step 3: Cross multiply
    128,848.98x = 193,279.54 × 106,317.86
  4. Step 4: Simplify right side
    128,848.98x = 20,549,067,074.58
  5. Step 5: Solve for x
    x = 20,549,067,074.58/128,848.98
  6. Step 6: Final answer
    x = 159,481.80

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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.