Home / 296,835.66-445,258.35-86,485.14

Finding the Fourth Proportional to 296,835.66, 445,258.35 and 86,485.14

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Solution

The fourth proportional to 296,835.66, 445,258.35 and 86,485.14 is: 129,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,835.66 : 445,258.35 = 86,485.14 : x
  2. Step 2: Convert to fraction form
    296,835.66/445,258.35 = 86,485.14/x
  3. Step 3: Cross multiply
    296,835.66x = 445,258.35 × 86,485.14
  4. Step 4: Simplify right side
    296,835.66x = 38,508,230,735.92
  5. Step 5: Solve for x
    x = 38,508,230,735.92/296,835.66
  6. Step 6: Final answer
    x = 129,729.13

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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.