Home / 219,033.12-328,568.31-61,261.68

Finding the Fourth Proportional to 219,033.12, 328,568.31 and 61,261.68

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Solution

The fourth proportional to 219,033.12, 328,568.31 and 61,261.68 is: 91,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,033.12 : 328,568.31 = 61,261.68 : x
  2. Step 2: Convert to fraction form
    219,033.12/328,568.31 = 61,261.68/x
  3. Step 3: Cross multiply
    219,033.12x = 328,568.31 × 61,261.68
  4. Step 4: Simplify right side
    219,033.12x = 20,128,646,665.36
  5. Step 5: Solve for x
    x = 20,128,646,665.36/219,033.12
  6. Step 6: Final answer
    x = 91,897.73

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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.