Home / 109,281.81-163,932-30,396.04

Finding the Fourth Proportional to 109,281.81, 163,932 and 30,396.04

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Solution

The fourth proportional to 109,281.81, 163,932 and 30,396.04 is: 45,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,281.81 : 163,932 = 30,396.04 : x
  2. Step 2: Convert to fraction form
    109,281.81/163,932 = 30,396.04/x
  3. Step 3: Cross multiply
    109,281.81x = 163,932 × 30,396.04
  4. Step 4: Simplify right side
    109,281.81x = 4,982,883,629.28
  5. Step 5: Solve for x
    x = 4,982,883,629.28/109,281.81
  6. Step 6: Final answer
    x = 45,596.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.