Home / 136,945,045.14-188,873,967.92-120,389,772.26

Finding the Fourth Proportional to 136,945,045.14, 188,873,967.92 and 120,389,772.26

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Solution

The fourth proportional to 136,945,045.14, 188,873,967.92 and 120,389,772.26 is: 166,041,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945,045.14 : 188,873,967.92 = 120,389,772.26 : x
  2. Step 2: Convert to fraction form
    136,945,045.14/188,873,967.92 = 120,389,772.26/x
  3. Step 3: Cross multiply
    136,945,045.14x = 188,873,967.92 × 120,389,772.26
  4. Step 4: Simplify right side
    136,945,045.14x = 22,738,493,982,185,024
  5. Step 5: Solve for x
    x = 22,738,493,982,185,024/136,945,045.14
  6. Step 6: Final answer
    x = 166,041,012.72

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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.