Home / 136,704.93-188,639.73-83,019.35

Finding the Fourth Proportional to 136,704.93, 188,639.73 and 83,019.35

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Solution

The fourth proportional to 136,704.93, 188,639.73 and 83,019.35 is: 114,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,704.93 : 188,639.73 = 83,019.35 : x
  2. Step 2: Convert to fraction form
    136,704.93/188,639.73 = 83,019.35/x
  3. Step 3: Cross multiply
    136,704.93x = 188,639.73 × 83,019.35
  4. Step 4: Simplify right side
    136,704.93x = 15,660,746,825.58
  5. Step 5: Solve for x
    x = 15,660,746,825.58/136,704.93
  6. Step 6: Final answer
    x = 114,558.76

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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.