Home / 111,922.32-154,454.94-61,621.32

Finding the Fourth Proportional to 111,922.32, 154,454.94 and 61,621.32

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Solution

The fourth proportional to 111,922.32, 154,454.94 and 61,621.32 is: 85,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,922.32 : 154,454.94 = 61,621.32 : x
  2. Step 2: Convert to fraction form
    111,922.32/154,454.94 = 61,621.32/x
  3. Step 3: Cross multiply
    111,922.32x = 154,454.94 × 61,621.32
  4. Step 4: Simplify right side
    111,922.32x = 9,517,717,283.32
  5. Step 5: Solve for x
    x = 9,517,717,283.32/111,922.32
  6. Step 6: Final answer
    x = 85,038.60

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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.