Home / 123,785.44-185,681.92-30,291.36

Finding the Fourth Proportional to 123,785.44, 185,681.92 and 30,291.36

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Solution

The fourth proportional to 123,785.44, 185,681.92 and 30,291.36 is: 45,437.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,785.44 : 185,681.92 = 30,291.36 : x
  2. Step 2: Convert to fraction form
    123,785.44/185,681.92 = 30,291.36/x
  3. Step 3: Cross multiply
    123,785.44x = 185,681.92 × 30,291.36
  4. Step 4: Simplify right side
    123,785.44x = 5,624,557,884.21
  5. Step 5: Solve for x
    x = 5,624,557,884.21/123,785.44
  6. Step 6: Final answer
    x = 45,437.96

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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.