Home / 180,119-248,579.58-100,646.36

Finding the Fourth Proportional to 180,119, 248,579.58 and 100,646.36

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Solution

The fourth proportional to 180,119, 248,579.58 and 100,646.36 is: 138,900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,119 : 248,579.58 = 100,646.36 : x
  2. Step 2: Convert to fraction form
    180,119/248,579.58 = 100,646.36/x
  3. Step 3: Cross multiply
    180,119x = 248,579.58 × 100,646.36
  4. Step 4: Simplify right side
    180,119x = 25,018,629,897.33
  5. Step 5: Solve for x
    x = 25,018,629,897.33/180,119
  6. Step 6: Final answer
    x = 138,900.56

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1.5x scale

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.