Home / 143,622.32-197,765.96-135,205.88

Finding the Fourth Proportional to 143,622.32, 197,765.96 and 135,205.88

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Solution

The fourth proportional to 143,622.32, 197,765.96 and 135,205.88 is: 186,176.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,622.32 : 197,765.96 = 135,205.88 : x
  2. Step 2: Convert to fraction form
    143,622.32/197,765.96 = 135,205.88/x
  3. Step 3: Cross multiply
    143,622.32x = 197,765.96 × 135,205.88
  4. Step 4: Simplify right side
    143,622.32x = 26,739,120,655.84
  5. Step 5: Solve for x
    x = 26,739,120,655.84/143,622.32
  6. Step 6: Final answer
    x = 186,176.64

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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.