Home / 111,867.75-154,342.68-63,461.67

Finding the Fourth Proportional to 111,867.75, 154,342.68 and 63,461.67

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Solution

The fourth proportional to 111,867.75, 154,342.68 and 63,461.67 is: 87,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,867.75 : 154,342.68 = 63,461.67 : x
  2. Step 2: Convert to fraction form
    111,867.75/154,342.68 = 63,461.67/x
  3. Step 3: Cross multiply
    111,867.75x = 154,342.68 × 63,461.67
  4. Step 4: Simplify right side
    111,867.75x = 9,794,844,225.08
  5. Step 5: Solve for x
    x = 9,794,844,225.08/111,867.75
  6. Step 6: Final answer
    x = 87,557.35

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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.