Home / 189,923.94-262,175.74-118,339.35

Finding the Fourth Proportional to 189,923.94, 262,175.74 and 118,339.35

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Solution

The fourth proportional to 189,923.94, 262,175.74 and 118,339.35 is: 163,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,923.94 : 262,175.74 = 118,339.35 : x
  2. Step 2: Convert to fraction form
    189,923.94/262,175.74 = 118,339.35/x
  3. Step 3: Cross multiply
    189,923.94x = 262,175.74 × 118,339.35
  4. Step 4: Simplify right side
    189,923.94x = 31,025,705,378.36
  5. Step 5: Solve for x
    x = 31,025,705,378.36/189,923.94
  6. Step 6: Final answer
    x = 163,358.58

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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.