Home / 118,351.76-163,328.27-64,636.31

Finding the Fourth Proportional to 118,351.76, 163,328.27 and 64,636.31

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Solution

The fourth proportional to 118,351.76, 163,328.27 and 64,636.31 is: 89,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,351.76 : 163,328.27 = 64,636.31 : x
  2. Step 2: Convert to fraction form
    118,351.76/163,328.27 = 64,636.31/x
  3. Step 3: Cross multiply
    118,351.76x = 163,328.27 × 64,636.31
  4. Step 4: Simplify right side
    118,351.76x = 10,556,936,776.62
  5. Step 5: Solve for x
    x = 10,556,936,776.62/118,351.76
  6. Step 6: Final answer
    x = 89,199.66

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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.