Home / 136,478.44-188,335.30-76,045.96

Finding the Fourth Proportional to 136,478.44, 188,335.30 and 76,045.96

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Solution

The fourth proportional to 136,478.44, 188,335.30 and 76,045.96 is: 104,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,478.44 : 188,335.30 = 76,045.96 : x
  2. Step 2: Convert to fraction form
    136,478.44/188,335.30 = 76,045.96/x
  3. Step 3: Cross multiply
    136,478.44x = 188,335.30 × 76,045.96
  4. Step 4: Simplify right side
    136,478.44x = 14,322,138,690.39
  5. Step 5: Solve for x
    x = 14,322,138,690.39/136,478.44
  6. Step 6: Final answer
    x = 104,940.67

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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.