Home / 219,025.18-328,540.38-85,968.10

Finding the Fourth Proportional to 219,025.18, 328,540.38 and 85,968.10

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Solution

The fourth proportional to 219,025.18, 328,540.38 and 85,968.10 is: 128,953.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,025.18 : 328,540.38 = 85,968.10 : x
  2. Step 2: Convert to fraction form
    219,025.18/328,540.38 = 85,968.10/x
  3. Step 3: Cross multiply
    219,025.18x = 328,540.38 × 85,968.10
  4. Step 4: Simplify right side
    219,025.18x = 28,243,992,241.88
  5. Step 5: Solve for x
    x = 28,243,992,241.88/219,025.18
  6. Step 6: Final answer
    x = 128,953.17

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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.