Home / 111,923.64-154,454.76-61,622.64

Finding the Fourth Proportional to 111,923.64, 154,454.76 and 61,622.64

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Solution

The fourth proportional to 111,923.64, 154,454.76 and 61,622.64 is: 85,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,923.64 : 154,454.76 = 61,622.64 : x
  2. Step 2: Convert to fraction form
    111,923.64/154,454.76 = 61,622.64/x
  3. Step 3: Cross multiply
    111,923.64x = 154,454.76 × 61,622.64
  4. Step 4: Simplify right side
    111,923.64x = 9,517,910,071.77
  5. Step 5: Solve for x
    x = 9,517,910,071.77/111,923.64
  6. Step 6: Final answer
    x = 85,039.32

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1.5x scale

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.