Home / 185,405.85-255,865.47-104,831.64

Finding the Fourth Proportional to 185,405.85, 255,865.47 and 104,831.64

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Solution

The fourth proportional to 185,405.85, 255,865.47 and 104,831.64 is: 144,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,405.85 : 255,865.47 = 104,831.64 : x
  2. Step 2: Convert to fraction form
    185,405.85/255,865.47 = 104,831.64/x
  3. Step 3: Cross multiply
    185,405.85x = 255,865.47 × 104,831.64
  4. Step 4: Simplify right side
    185,405.85x = 26,822,796,839.47
  5. Step 5: Solve for x
    x = 26,822,796,839.47/185,405.85
  6. Step 6: Final answer
    x = 144,670.71

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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.