Home / 103,288.16-154,914.36-27,387.20

Finding the Fourth Proportional to 103,288.16, 154,914.36 and 27,387.20

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Solution

The fourth proportional to 103,288.16, 154,914.36 and 27,387.20 is: 41,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,288.16 : 154,914.36 = 27,387.20 : x
  2. Step 2: Convert to fraction form
    103,288.16/154,914.36 = 27,387.20/x
  3. Step 3: Cross multiply
    103,288.16x = 154,914.36 × 27,387.20
  4. Step 4: Simplify right side
    103,288.16x = 4,242,669,785.62
  5. Step 5: Solve for x
    x = 4,242,669,785.62/103,288.16
  6. Step 6: Final answer
    x = 41,076.05

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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.