Home / 181,319.64-250,140.72-120,831.36

Finding the Fourth Proportional to 181,319.64, 250,140.72 and 120,831.36

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Solution

The fourth proportional to 181,319.64, 250,140.72 and 120,831.36 is: 166,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,319.64 : 250,140.72 = 120,831.36 : x
  2. Step 2: Convert to fraction form
    181,319.64/250,140.72 = 120,831.36/x
  3. Step 3: Cross multiply
    181,319.64x = 250,140.72 × 120,831.36
  4. Step 4: Simplify right side
    181,319.64x = 30,224,843,388.98
  5. Step 5: Solve for x
    x = 30,224,843,388.98/181,319.64
  6. Step 6: Final answer
    x = 166,693.71

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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.