Home / 180,287.67-248,815.14-99,721.33

Finding the Fourth Proportional to 180,287.67, 248,815.14 and 99,721.33

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Solution

The fourth proportional to 180,287.67, 248,815.14 and 99,721.33 is: 137,625.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,287.67 : 248,815.14 = 99,721.33 : x
  2. Step 2: Convert to fraction form
    180,287.67/248,815.14 = 99,721.33/x
  3. Step 3: Cross multiply
    180,287.67x = 248,815.14 × 99,721.33
  4. Step 4: Simplify right side
    180,287.67x = 24,812,176,249.88
  5. Step 5: Solve for x
    x = 24,812,176,249.88/180,287.67
  6. Step 6: Final answer
    x = 137,625.47

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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.