Home / 111,836.59-154,283.64-66,488.84

Finding the Fourth Proportional to 111,836.59, 154,283.64 and 66,488.84

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Solution

The fourth proportional to 111,836.59, 154,283.64 and 66,488.84 is: 91,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,836.59 : 154,283.64 = 66,488.84 : x
  2. Step 2: Convert to fraction form
    111,836.59/154,283.64 = 66,488.84/x
  3. Step 3: Cross multiply
    111,836.59x = 154,283.64 × 66,488.84
  4. Step 4: Simplify right side
    111,836.59x = 10,258,141,241.24
  5. Step 5: Solve for x
    x = 10,258,141,241.24/111,836.59
  6. Step 6: Final answer
    x = 91,724.37

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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.