Home / 136,485.90-188,347.97-76,055.22

Finding the Fourth Proportional to 136,485.90, 188,347.97 and 76,055.22

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Solution

The fourth proportional to 136,485.90, 188,347.97 and 76,055.22 is: 104,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,485.90 : 188,347.97 = 76,055.22 : x
  2. Step 2: Convert to fraction form
    136,485.90/188,347.97 = 76,055.22/x
  3. Step 3: Cross multiply
    136,485.90x = 188,347.97 × 76,055.22
  4. Step 4: Simplify right side
    136,485.90x = 14,324,846,485.04
  5. Step 5: Solve for x
    x = 14,324,846,485.04/136,485.90
  6. Step 6: Final answer
    x = 104,954.77

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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.