Home / 225,619.16-311,272.04-134,977.72

Finding the Fourth Proportional to 225,619.16, 311,272.04 and 134,977.72

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Solution

The fourth proportional to 225,619.16, 311,272.04 and 134,977.72 is: 186,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,619.16 : 311,272.04 = 134,977.72 : x
  2. Step 2: Convert to fraction form
    225,619.16/311,272.04 = 134,977.72/x
  3. Step 3: Cross multiply
    225,619.16x = 311,272.04 × 134,977.72
  4. Step 4: Simplify right side
    225,619.16x = 42,014,790,258.95
  5. Step 5: Solve for x
    x = 42,014,790,258.95/225,619.16
  6. Step 6: Final answer
    x = 186,219.96

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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.