Home / 103,859.39-143,326.03-56,112.73

Finding the Fourth Proportional to 103,859.39, 143,326.03 and 56,112.73

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Solution

The fourth proportional to 103,859.39, 143,326.03 and 56,112.73 is: 77,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859.39 : 143,326.03 = 56,112.73 : x
  2. Step 2: Convert to fraction form
    103,859.39/143,326.03 = 56,112.73/x
  3. Step 3: Cross multiply
    103,859.39x = 143,326.03 × 56,112.73
  4. Step 4: Simplify right side
    103,859.39x = 8,042,414,324.77
  5. Step 5: Solve for x
    x = 8,042,414,324.77/103,859.39
  6. Step 6: Final answer
    x = 77,435.60

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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.