Home / 189,729.36-261,831.76-104,851.76

Finding the Fourth Proportional to 189,729.36, 261,831.76 and 104,851.76

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Solution

The fourth proportional to 189,729.36, 261,831.76 and 104,851.76 is: 144,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,729.36 : 261,831.76 = 104,851.76 : x
  2. Step 2: Convert to fraction form
    189,729.36/261,831.76 = 104,851.76/x
  3. Step 3: Cross multiply
    189,729.36x = 261,831.76 × 104,851.76
  4. Step 4: Simplify right side
    189,729.36x = 27,453,520,859.90
  5. Step 5: Solve for x
    x = 27,453,520,859.90/189,729.36
  6. Step 6: Final answer
    x = 144,698.33

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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.