Home / 111,015.03-153,204.63-63,260.67

Finding the Fourth Proportional to 111,015.03, 153,204.63 and 63,260.67

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Solution

The fourth proportional to 111,015.03, 153,204.63 and 63,260.67 is: 87,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,015.03 : 153,204.63 = 63,260.67 : x
  2. Step 2: Convert to fraction form
    111,015.03/153,204.63 = 63,260.67/x
  3. Step 3: Cross multiply
    111,015.03x = 153,204.63 × 63,260.67
  4. Step 4: Simplify right side
    111,015.03x = 9,691,827,540.90
  5. Step 5: Solve for x
    x = 9,691,827,540.90/111,015.03
  6. Step 6: Final answer
    x = 87,301.94

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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.