Home / 143,356.72-197,920.74-92,387.44

Finding the Fourth Proportional to 143,356.72, 197,920.74 and 92,387.44

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Solution

The fourth proportional to 143,356.72, 197,920.74 and 92,387.44 is: 127,551.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,356.72 : 197,920.74 = 92,387.44 : x
  2. Step 2: Convert to fraction form
    143,356.72/197,920.74 = 92,387.44/x
  3. Step 3: Cross multiply
    143,356.72x = 197,920.74 × 92,387.44
  4. Step 4: Simplify right side
    143,356.72x = 18,285,390,491.51
  5. Step 5: Solve for x
    x = 18,285,390,491.51/143,356.72
  6. Step 6: Final answer
    x = 127,551.68

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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.