Home / 143,530.44-198,054.18-79,863.72

Finding the Fourth Proportional to 143,530.44, 198,054.18 and 79,863.72

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Solution

The fourth proportional to 143,530.44, 198,054.18 and 79,863.72 is: 110,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,530.44 : 198,054.18 = 79,863.72 : x
  2. Step 2: Convert to fraction form
    143,530.44/198,054.18 = 79,863.72/x
  3. Step 3: Cross multiply
    143,530.44x = 198,054.18 × 79,863.72
  4. Step 4: Simplify right side
    143,530.44x = 15,817,343,576.35
  5. Step 5: Solve for x
    x = 15,817,343,576.35/143,530.44
  6. Step 6: Final answer
    x = 110,202.01

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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.