Home / 101,120.16-139,546.80-55,799.04

Finding the Fourth Proportional to 101,120.16, 139,546.80 and 55,799.04

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Solution

The fourth proportional to 101,120.16, 139,546.80 and 55,799.04 is: 77,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,120.16 : 139,546.80 = 55,799.04 : x
  2. Step 2: Convert to fraction form
    101,120.16/139,546.80 = 55,799.04/x
  3. Step 3: Cross multiply
    101,120.16x = 139,546.80 × 55,799.04
  4. Step 4: Simplify right side
    101,120.16x = 7,786,577,475.07
  5. Step 5: Solve for x
    x = 7,786,577,475.07/101,120.16
  6. Step 6: Final answer
    x = 77,003.22

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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.