Home / 111,933.49-154,464.65-66,601.10

Finding the Fourth Proportional to 111,933.49, 154,464.65 and 66,601.10

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Solution

The fourth proportional to 111,933.49, 154,464.65 and 66,601.10 is: 91,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,933.49 : 154,464.65 = 66,601.10 : x
  2. Step 2: Convert to fraction form
    111,933.49/154,464.65 = 66,601.10/x
  3. Step 3: Cross multiply
    111,933.49x = 154,464.65 × 66,601.10
  4. Step 4: Simplify right side
    111,933.49x = 10,287,515,601.12
  5. Step 5: Solve for x
    x = 10,287,515,601.12/111,933.49
  6. Step 6: Final answer
    x = 91,907.40

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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.