Home / 149,146.93-205,823.64-81,164.44

Finding the Fourth Proportional to 149,146.93, 205,823.64 and 81,164.44

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Solution

The fourth proportional to 149,146.93, 205,823.64 and 81,164.44 is: 112,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,146.93 : 205,823.64 = 81,164.44 : x
  2. Step 2: Convert to fraction form
    149,146.93/205,823.64 = 81,164.44/x
  3. Step 3: Cross multiply
    149,146.93x = 205,823.64 × 81,164.44
  4. Step 4: Simplify right side
    149,146.93x = 16,705,560,479.36
  5. Step 5: Solve for x
    x = 16,705,560,479.36/149,146.93
  6. Step 6: Final answer
    x = 112,007.40

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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.