Home / 135,087.58-186,186.21-98,729.51

Finding the Fourth Proportional to 135,087.58, 186,186.21 and 98,729.51

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Solution

The fourth proportional to 135,087.58, 186,186.21 and 98,729.51 is: 136,075.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,087.58 : 186,186.21 = 98,729.51 : x
  2. Step 2: Convert to fraction form
    135,087.58/186,186.21 = 98,729.51/x
  3. Step 3: Cross multiply
    135,087.58x = 186,186.21 × 98,729.51
  4. Step 4: Simplify right side
    135,087.58x = 18,382,073,282.06
  5. Step 5: Solve for x
    x = 18,382,073,282.06/135,087.58
  6. Step 6: Final answer
    x = 136,075.23

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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.