Home / 111,724.19-154,178.73-63,335.24

Finding the Fourth Proportional to 111,724.19, 154,178.73 and 63,335.24

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Solution

The fourth proportional to 111,724.19, 154,178.73 and 63,335.24 is: 87,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,724.19 : 154,178.73 = 63,335.24 : x
  2. Step 2: Convert to fraction form
    111,724.19/154,178.73 = 63,335.24/x
  3. Step 3: Cross multiply
    111,724.19x = 154,178.73 × 63,335.24
  4. Step 4: Simplify right side
    111,724.19x = 9,764,947,252.89
  5. Step 5: Solve for x
    x = 9,764,947,252.89/111,724.19
  6. Step 6: Final answer
    x = 87,402.27

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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.