Home / 118,440.37-163,395.21-70,665.94

Finding the Fourth Proportional to 118,440.37, 163,395.21 and 70,665.94

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Solution

The fourth proportional to 118,440.37, 163,395.21 and 70,665.94 is: 97,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,440.37 : 163,395.21 = 70,665.94 : x
  2. Step 2: Convert to fraction form
    118,440.37/163,395.21 = 70,665.94/x
  3. Step 3: Cross multiply
    118,440.37x = 163,395.21 × 70,665.94
  4. Step 4: Simplify right side
    118,440.37x = 11,546,476,106.15
  5. Step 5: Solve for x
    x = 11,546,476,106.15/118,440.37
  6. Step 6: Final answer
    x = 97,487.67

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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.