Home / 123,066-169,831.08-66,477.38

Finding the Fourth Proportional to 123,066, 169,831.08 and 66,477.38

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Solution

The fourth proportional to 123,066, 169,831.08 and 66,477.38 is: 91,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,066 : 169,831.08 = 66,477.38 : x
  2. Step 2: Convert to fraction form
    123,066/169,831.08 = 66,477.38/x
  3. Step 3: Cross multiply
    123,066x = 169,831.08 × 66,477.38
  4. Step 4: Simplify right side
    123,066x = 11,289,924,391.82
  5. Step 5: Solve for x
    x = 11,289,924,391.82/123,066
  6. Step 6: Final answer
    x = 91,738.78

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1.5x scale

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.