Home / 106,683.72-147,217.62-66,396.22

Finding the Fourth Proportional to 106,683.72, 147,217.62 and 66,396.22

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Solution

The fourth proportional to 106,683.72, 147,217.62 and 66,396.22 is: 91,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,683.72 : 147,217.62 = 66,396.22 : x
  2. Step 2: Convert to fraction form
    106,683.72/147,217.62 = 66,396.22/x
  3. Step 3: Cross multiply
    106,683.72x = 147,217.62 × 66,396.22
  4. Step 4: Simplify right side
    106,683.72x = 9,774,693,485.40
  5. Step 5: Solve for x
    x = 9,774,693,485.40/106,683.72
  6. Step 6: Final answer
    x = 91,623.10

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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.