Home / 111,541.43-153,952.58-63,821.09

Finding the Fourth Proportional to 111,541.43, 153,952.58 and 63,821.09

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Solution

The fourth proportional to 111,541.43, 153,952.58 and 63,821.09 is: 88,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,541.43 : 153,952.58 = 63,821.09 : x
  2. Step 2: Convert to fraction form
    111,541.43/153,952.58 = 63,821.09/x
  3. Step 3: Cross multiply
    111,541.43x = 153,952.58 × 63,821.09
  4. Step 4: Simplify right side
    111,541.43x = 9,825,421,463.91
  5. Step 5: Solve for x
    x = 9,825,421,463.91/111,541.43
  6. Step 6: Final answer
    x = 88,087.64

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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.