Home / 103,858.71-143,324.97-56,112.03

Finding the Fourth Proportional to 103,858.71, 143,324.97 and 56,112.03

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Solution

The fourth proportional to 103,858.71, 143,324.97 and 56,112.03 is: 77,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,858.71 : 143,324.97 = 56,112.03 : x
  2. Step 2: Convert to fraction form
    103,858.71/143,324.97 = 56,112.03/x
  3. Step 3: Cross multiply
    103,858.71x = 143,324.97 × 56,112.03
  4. Step 4: Simplify right side
    103,858.71x = 8,042,255,016.39
  5. Step 5: Solve for x
    x = 8,042,255,016.39/103,858.71
  6. Step 6: Final answer
    x = 77,434.57

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1.5x scale

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.