Home / 118,456.20-163,466.79-64,742.67

Finding the Fourth Proportional to 118,456.20, 163,466.79 and 64,742.67

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Solution

The fourth proportional to 118,456.20, 163,466.79 and 64,742.67 is: 89,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.20 : 163,466.79 = 64,742.67 : x
  2. Step 2: Convert to fraction form
    118,456.20/163,466.79 = 64,742.67/x
  3. Step 3: Cross multiply
    118,456.20x = 163,466.79 × 64,742.67
  4. Step 4: Simplify right side
    118,456.20x = 10,583,276,440.93
  5. Step 5: Solve for x
    x = 10,583,276,440.93/118,456.20
  6. Step 6: Final answer
    x = 89,343.37

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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.