Home / 111,528.04-153,898.42-66,198.28

Finding the Fourth Proportional to 111,528.04, 153,898.42 and 66,198.28

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Solution

The fourth proportional to 111,528.04, 153,898.42 and 66,198.28 is: 91,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,528.04 : 153,898.42 = 66,198.28 : x
  2. Step 2: Convert to fraction form
    111,528.04/153,898.42 = 66,198.28/x
  3. Step 3: Cross multiply
    111,528.04x = 153,898.42 × 66,198.28
  4. Step 4: Simplify right side
    111,528.04x = 10,187,810,698.72
  5. Step 5: Solve for x
    x = 10,187,810,698.72/111,528.04
  6. Step 6: Final answer
    x = 91,347.53

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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.