Home / 136,442.96-188,291.60-79,093.36

Finding the Fourth Proportional to 136,442.96, 188,291.60 and 79,093.36

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Solution

The fourth proportional to 136,442.96, 188,291.60 and 79,093.36 is: 109,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,442.96 : 188,291.60 = 79,093.36 : x
  2. Step 2: Convert to fraction form
    136,442.96/188,291.60 = 79,093.36/x
  3. Step 3: Cross multiply
    136,442.96x = 188,291.60 × 79,093.36
  4. Step 4: Simplify right side
    136,442.96x = 14,892,615,303.78
  5. Step 5: Solve for x
    x = 14,892,615,303.78/136,442.96
  6. Step 6: Final answer
    x = 109,149.02

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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.