Home / 125,449.36-188,172.41-30,680.36

Finding the Fourth Proportional to 125,449.36, 188,172.41 and 30,680.36

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Solution

The fourth proportional to 125,449.36, 188,172.41 and 30,680.36 is: 46,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,449.36 : 188,172.41 = 30,680.36 : x
  2. Step 2: Convert to fraction form
    125,449.36/188,172.41 = 30,680.36/x
  3. Step 3: Cross multiply
    125,449.36x = 188,172.41 × 30,680.36
  4. Step 4: Simplify right side
    125,449.36x = 5,773,197,950.72
  5. Step 5: Solve for x
    x = 5,773,197,950.72/125,449.36
  6. Step 6: Final answer
    x = 46,020.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.