Home / 103,639.41-143,022.39-58,927.41

Finding the Fourth Proportional to 103,639.41, 143,022.39 and 58,927.41

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Solution

The fourth proportional to 103,639.41, 143,022.39 and 58,927.41 is: 81,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.41 : 143,022.39 = 58,927.41 : x
  2. Step 2: Convert to fraction form
    103,639.41/143,022.39 = 58,927.41/x
  3. Step 3: Cross multiply
    103,639.41x = 143,022.39 × 58,927.41
  4. Step 4: Simplify right side
    103,639.41x = 8,427,939,014.71
  5. Step 5: Solve for x
    x = 8,427,939,014.71/103,639.41
  6. Step 6: Final answer
    x = 81,319.83

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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.