Home / 143,345.34-197,816.31-79,682.94

Finding the Fourth Proportional to 143,345.34, 197,816.31 and 79,682.94

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Solution

The fourth proportional to 143,345.34, 197,816.31 and 79,682.94 is: 109,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,345.34 : 197,816.31 = 79,682.94 : x
  2. Step 2: Convert to fraction form
    143,345.34/197,816.31 = 79,682.94/x
  3. Step 3: Cross multiply
    143,345.34x = 197,816.31 × 79,682.94
  4. Step 4: Simplify right side
    143,345.34x = 15,762,585,160.75
  5. Step 5: Solve for x
    x = 15,762,585,160.75/143,345.34
  6. Step 6: Final answer
    x = 109,962.31

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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.