Home / 154,734.03-213,544.89-86,757.21

Finding the Fourth Proportional to 154,734.03, 213,544.89 and 86,757.21

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Solution

The fourth proportional to 154,734.03, 213,544.89 and 86,757.21 is: 119,731.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,734.03 : 213,544.89 = 86,757.21 : x
  2. Step 2: Convert to fraction form
    154,734.03/213,544.89 = 86,757.21/x
  3. Step 3: Cross multiply
    154,734.03x = 213,544.89 × 86,757.21
  4. Step 4: Simplify right side
    154,734.03x = 18,526,558,866.16
  5. Step 5: Solve for x
    x = 18,526,558,866.16/154,734.03
  6. Step 6: Final answer
    x = 119,731.64

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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.