Home / 143,330.20-197,795.64-79,668.10

Finding the Fourth Proportional to 143,330.20, 197,795.64 and 79,668.10

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Solution

The fourth proportional to 143,330.20, 197,795.64 and 79,668.10 is: 109,941.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,330.20 : 197,795.64 = 79,668.10 : x
  2. Step 2: Convert to fraction form
    143,330.20/197,795.64 = 79,668.10/x
  3. Step 3: Cross multiply
    143,330.20x = 197,795.64 × 79,668.10
  4. Step 4: Simplify right side
    143,330.20x = 15,758,002,827.08
  5. Step 5: Solve for x
    x = 15,758,002,827.08/143,330.20
  6. Step 6: Final answer
    x = 109,941.96

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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.