Home / 136,477.82-188,334.60-76,045.34

Finding the Fourth Proportional to 136,477.82, 188,334.60 and 76,045.34

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Solution

The fourth proportional to 136,477.82, 188,334.60 and 76,045.34 is: 104,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,477.82 : 188,334.60 = 76,045.34 : x
  2. Step 2: Convert to fraction form
    136,477.82/188,334.60 = 76,045.34/x
  3. Step 3: Cross multiply
    136,477.82x = 188,334.60 × 76,045.34
  4. Step 4: Simplify right side
    136,477.82x = 14,321,968,690.76
  5. Step 5: Solve for x
    x = 14,321,968,690.76/136,477.82
  6. Step 6: Final answer
    x = 104,939.90

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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.