Home / 117,636.35-162,319.88-69,888.47

Finding the Fourth Proportional to 117,636.35, 162,319.88 and 69,888.47

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Solution

The fourth proportional to 117,636.35, 162,319.88 and 69,888.47 is: 96,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,636.35 : 162,319.88 = 69,888.47 : x
  2. Step 2: Convert to fraction form
    117,636.35/162,319.88 = 69,888.47/x
  3. Step 3: Cross multiply
    117,636.35x = 162,319.88 × 69,888.47
  4. Step 4: Simplify right side
    117,636.35x = 11,344,288,063.78
  5. Step 5: Solve for x
    x = 11,344,288,063.78/117,636.35
  6. Step 6: Final answer
    x = 96,435.23

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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.