Home / 108,521.12-162,587.28-38,355.68

Finding the Fourth Proportional to 108,521.12, 162,587.28 and 38,355.68

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Solution

The fourth proportional to 108,521.12, 162,587.28 and 38,355.68 is: 57,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.12 : 162,587.28 = 38,355.68 : x
  2. Step 2: Convert to fraction form
    108,521.12/162,587.28 = 38,355.68/x
  3. Step 3: Cross multiply
    108,521.12x = 162,587.28 × 38,355.68
  4. Step 4: Simplify right side
    108,521.12x = 6,236,145,683.75
  5. Step 5: Solve for x
    x = 6,236,145,683.75/108,521.12
  6. Step 6: Final answer
    x = 57,464.81

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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.