Home / 111,735,843.78-154,108,110.69-72,590,233.17

Finding the Fourth Proportional to 111,735,843.78, 154,108,110.69 and 72,590,233.17

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Solution

The fourth proportional to 111,735,843.78, 154,108,110.69 and 72,590,233.17 is: 100,117,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,735,843.78 : 154,108,110.69 = 72,590,233.17 : x
  2. Step 2: Convert to fraction form
    111,735,843.78/154,108,110.69 = 72,590,233.17/x
  3. Step 3: Cross multiply
    111,735,843.78x = 154,108,110.69 × 72,590,233.17
  4. Step 4: Simplify right side
    111,735,843.78x = 11,186,743,688,375,270
  5. Step 5: Solve for x
    x = 11,186,743,688,375,270/111,735,843.78
  6. Step 6: Final answer
    x = 100,117,771.61

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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.