Home / 104,146.02-143,721.24-56,399.36

Finding the Fourth Proportional to 104,146.02, 143,721.24 and 56,399.36

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Solution

The fourth proportional to 104,146.02, 143,721.24 and 56,399.36 is: 77,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,146.02 : 143,721.24 = 56,399.36 : x
  2. Step 2: Convert to fraction form
    104,146.02/143,721.24 = 56,399.36/x
  3. Step 3: Cross multiply
    104,146.02x = 143,721.24 × 56,399.36
  4. Step 4: Simplify right side
    104,146.02x = 8,105,785,954.41
  5. Step 5: Solve for x
    x = 8,105,785,954.41/104,146.02
  6. Step 6: Final answer
    x = 77,830.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.