Home / 143,624.32-197,768.72-135,207.88

Finding the Fourth Proportional to 143,624.32, 197,768.72 and 135,207.88

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Solution

The fourth proportional to 143,624.32, 197,768.72 and 135,207.88 is: 186,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,624.32 : 197,768.72 = 135,207.88 : x
  2. Step 2: Convert to fraction form
    143,624.32/197,768.72 = 135,207.88/x
  3. Step 3: Cross multiply
    143,624.32x = 197,768.72 × 135,207.88
  4. Step 4: Simplify right side
    143,624.32x = 26,739,889,361.51
  5. Step 5: Solve for x
    x = 26,739,889,361.51/143,624.32
  6. Step 6: Final answer
    x = 186,179.40

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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.