Home / 165,682.32-248,344.74-81,344.40

Finding the Fourth Proportional to 165,682.32, 248,344.74 and 81,344.40

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Solution

The fourth proportional to 165,682.32, 248,344.74 and 81,344.40 is: 121,928.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,682.32 : 248,344.74 = 81,344.40 : x
  2. Step 2: Convert to fraction form
    165,682.32/248,344.74 = 81,344.40/x
  3. Step 3: Cross multiply
    165,682.32x = 248,344.74 × 81,344.40
  4. Step 4: Simplify right side
    165,682.32x = 20,201,453,868.46
  5. Step 5: Solve for x
    x = 20,201,453,868.46/165,682.32
  6. Step 6: Final answer
    x = 121,928.84

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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.