Home / 111,976.56-154,457.40-66,622.32

Finding the Fourth Proportional to 111,976.56, 154,457.40 and 66,622.32

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Solution

The fourth proportional to 111,976.56, 154,457.40 and 66,622.32 is: 91,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,976.56 : 154,457.40 = 66,622.32 : x
  2. Step 2: Convert to fraction form
    111,976.56/154,457.40 = 66,622.32/x
  3. Step 3: Cross multiply
    111,976.56x = 154,457.40 × 66,622.32
  4. Step 4: Simplify right side
    111,976.56x = 10,290,310,329.17
  5. Step 5: Solve for x
    x = 10,290,310,329.17/111,976.56
  6. Step 6: Final answer
    x = 91,897.00

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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.