Home / 134,857,990.34-186,084,007.26-81,907,143.38

Finding the Fourth Proportional to 134,857,990.34, 186,084,007.26 and 81,907,143.38

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Solution

The fourth proportional to 134,857,990.34, 186,084,007.26 and 81,907,143.38 is: 113,019,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,990.34 : 186,084,007.26 = 81,907,143.38 : x
  2. Step 2: Convert to fraction form
    134,857,990.34/186,084,007.26 = 81,907,143.38/x
  3. Step 3: Cross multiply
    134,857,990.34x = 186,084,007.26 × 81,907,143.38
  4. Step 4: Simplify right side
    134,857,990.34x = 15,241,609,463,369,780
  5. Step 5: Solve for x
    x = 15,241,609,463,369,780/134,857,990.34
  6. Step 6: Final answer
    x = 113,019,698.91

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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.