Home / 111,928.10-154,471.66-83,584.58

Finding the Fourth Proportional to 111,928.10, 154,471.66 and 83,584.58

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Solution

The fourth proportional to 111,928.10, 154,471.66 and 83,584.58 is: 115,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,928.10 : 154,471.66 = 83,584.58 : x
  2. Step 2: Convert to fraction form
    111,928.10/154,471.66 = 83,584.58/x
  3. Step 3: Cross multiply
    111,928.10x = 154,471.66 × 83,584.58
  4. Step 4: Simplify right side
    111,928.10x = 12,911,447,841.68
  5. Step 5: Solve for x
    x = 12,911,447,841.68/111,928.10
  6. Step 6: Final answer
    x = 115,354.84

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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.