Home / 117,683.18-162,403.08-63,968.12

Finding the Fourth Proportional to 117,683.18, 162,403.08 and 63,968.12

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Solution

The fourth proportional to 117,683.18, 162,403.08 and 63,968.12 is: 88,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,683.18 : 162,403.08 = 63,968.12 : x
  2. Step 2: Convert to fraction form
    117,683.18/162,403.08 = 63,968.12/x
  3. Step 3: Cross multiply
    117,683.18x = 162,403.08 × 63,968.12
  4. Step 4: Simplify right side
    117,683.18x = 10,388,619,709.81
  5. Step 5: Solve for x
    x = 10,388,619,709.81/117,683.18
  6. Step 6: Final answer
    x = 88,276.16

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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.