Home / 108,568.40-162,860.70-38,438.60

Finding the Fourth Proportional to 108,568.40, 162,860.70 and 38,438.60

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Solution

The fourth proportional to 108,568.40, 162,860.70 and 38,438.60 is: 57,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,568.40 : 162,860.70 = 38,438.60 : x
  2. Step 2: Convert to fraction form
    108,568.40/162,860.70 = 38,438.60/x
  3. Step 3: Cross multiply
    108,568.40x = 162,860.70 × 38,438.60
  4. Step 4: Simplify right side
    108,568.40x = 6,260,137,303.02
  5. Step 5: Solve for x
    x = 6,260,137,303.02/108,568.40
  6. Step 6: Final answer
    x = 57,660.77

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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.