Home / 136,446.30-188,309.75-76,026.78

Finding the Fourth Proportional to 136,446.30, 188,309.75 and 76,026.78

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Solution

The fourth proportional to 136,446.30, 188,309.75 and 76,026.78 is: 104,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.30 : 188,309.75 = 76,026.78 : x
  2. Step 2: Convert to fraction form
    136,446.30/188,309.75 = 76,026.78/x
  3. Step 3: Cross multiply
    136,446.30x = 188,309.75 × 76,026.78
  4. Step 4: Simplify right side
    136,446.30x = 14,316,583,554.97
  5. Step 5: Solve for x
    x = 14,316,583,554.97/136,446.30
  6. Step 6: Final answer
    x = 104,924.67

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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.