Home / 185,455.08-255,964.32-121,791.24

Finding the Fourth Proportional to 185,455.08, 255,964.32 and 121,791.24

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Solution

The fourth proportional to 185,455.08, 255,964.32 and 121,791.24 is: 168,095.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,455.08 : 255,964.32 = 121,791.24 : x
  2. Step 2: Convert to fraction form
    185,455.08/255,964.32 = 121,791.24/x
  3. Step 3: Cross multiply
    185,455.08x = 255,964.32 × 121,791.24
  4. Step 4: Simplify right side
    185,455.08x = 31,174,211,928.56
  5. Step 5: Solve for x
    x = 31,174,211,928.56/185,455.08
  6. Step 6: Final answer
    x = 168,095.76

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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.