Home / 98,930.21-136,517.20-63,116.39

Finding the Fourth Proportional to 98,930.21, 136,517.20 and 63,116.39

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Solution

The fourth proportional to 98,930.21, 136,517.20 and 63,116.39 is: 87,096.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,930.21 : 136,517.20 = 63,116.39 : x
  2. Step 2: Convert to fraction form
    98,930.21/136,517.20 = 63,116.39/x
  3. Step 3: Cross multiply
    98,930.21x = 136,517.20 × 63,116.39
  4. Step 4: Simplify right side
    98,930.21x = 8,616,473,020.41
  5. Step 5: Solve for x
    x = 8,616,473,020.41/98,930.21
  6. Step 6: Final answer
    x = 87,096.48

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1.5x scale

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.