Home / 100,733.41-139,016.82-58,283.74

Finding the Fourth Proportional to 100,733.41, 139,016.82 and 58,283.74

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Solution

The fourth proportional to 100,733.41, 139,016.82 and 58,283.74 is: 80,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,733.41 : 139,016.82 = 58,283.74 : x
  2. Step 2: Convert to fraction form
    100,733.41/139,016.82 = 58,283.74/x
  3. Step 3: Cross multiply
    100,733.41x = 139,016.82 × 58,283.74
  4. Step 4: Simplify right side
    100,733.41x = 8,102,420,192.51
  5. Step 5: Solve for x
    x = 8,102,420,192.51/100,733.41
  6. Step 6: Final answer
    x = 80,434.29

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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.