Home / 136,945,055.64-188,873,982.36-120,389,782.80

Finding the Fourth Proportional to 136,945,055.64, 188,873,982.36 and 120,389,782.80

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Solution

The fourth proportional to 136,945,055.64, 188,873,982.36 and 120,389,782.80 is: 166,041,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945,055.64 : 188,873,982.36 = 120,389,782.80 : x
  2. Step 2: Convert to fraction form
    136,945,055.64/188,873,982.36 = 120,389,782.80/x
  3. Step 3: Cross multiply
    136,945,055.64x = 188,873,982.36 × 120,389,782.80
  4. Step 4: Simplify right side
    136,945,055.64x = 22,738,497,712,891,432
  5. Step 5: Solve for x
    x = 22,738,497,712,891,432/136,945,055.64
  6. Step 6: Final answer
    x = 166,041,027.23

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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.