Home / 167,638.36-251,622.78-123,140.20

Finding the Fourth Proportional to 167,638.36, 251,622.78 and 123,140.20

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Solution

The fourth proportional to 167,638.36, 251,622.78 and 123,140.20 is: 184,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,638.36 : 251,622.78 = 123,140.20 : x
  2. Step 2: Convert to fraction form
    167,638.36/251,622.78 = 123,140.20/x
  3. Step 3: Cross multiply
    167,638.36x = 251,622.78 × 123,140.20
  4. Step 4: Simplify right side
    167,638.36x = 30,984,879,453.76
  5. Step 5: Solve for x
    x = 30,984,879,453.76/167,638.36
  6. Step 6: Final answer
    x = 184,831.68

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1.5x scale

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.