Home / 120,767.40-181,150.56-102,831.03

Finding the Fourth Proportional to 120,767.40, 181,150.56 and 102,831.03

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Solution

The fourth proportional to 120,767.40, 181,150.56 and 102,831.03 is: 154,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.40 : 181,150.56 = 102,831.03 : x
  2. Step 2: Convert to fraction form
    120,767.40/181,150.56 = 102,831.03/x
  3. Step 3: Cross multiply
    120,767.40x = 181,150.56 × 102,831.03
  4. Step 4: Simplify right side
    120,767.40x = 18,627,898,669.88
  5. Step 5: Solve for x
    x = 18,627,898,669.88/120,767.40
  6. Step 6: Final answer
    x = 154,246.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.