Home / 101,180.40-139,625.27-55,857.41

Finding the Fourth Proportional to 101,180.40, 139,625.27 and 55,857.41

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Solution

The fourth proportional to 101,180.40, 139,625.27 and 55,857.41 is: 77,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,180.40 : 139,625.27 = 55,857.41 : x
  2. Step 2: Convert to fraction form
    101,180.40/139,625.27 = 55,857.41/x
  3. Step 3: Cross multiply
    101,180.40x = 139,625.27 × 55,857.41
  4. Step 4: Simplify right side
    101,180.40x = 7,799,104,975.34
  5. Step 5: Solve for x
    x = 7,799,104,975.34/101,180.40
  6. Step 6: Final answer
    x = 77,081.18

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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.