Home / 131,397,544.37-181,329,786.13-72,664,161.28

Finding the Fourth Proportional to 131,397,544.37, 181,329,786.13 and 72,664,161.28

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Solution

The fourth proportional to 131,397,544.37, 181,329,786.13 and 72,664,161.28 is: 100,277,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,397,544.37 : 181,329,786.13 = 72,664,161.28 : x
  2. Step 2: Convert to fraction form
    131,397,544.37/181,329,786.13 = 72,664,161.28/x
  3. Step 3: Cross multiply
    131,397,544.37x = 181,329,786.13 × 72,664,161.28
  4. Step 4: Simplify right side
    131,397,544.37x = 13,176,176,823,129,918
  5. Step 5: Solve for x
    x = 13,176,176,823,129,918/131,397,544.37
  6. Step 6: Final answer
    x = 100,277,192.29

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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.