Home / 143,332.32-197,805.62-79,668.75

Finding the Fourth Proportional to 143,332.32, 197,805.62 and 79,668.75

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Solution

The fourth proportional to 143,332.32, 197,805.62 and 79,668.75 is: 109,946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,332.32 : 197,805.62 = 79,668.75 : x
  2. Step 2: Convert to fraction form
    143,332.32/197,805.62 = 79,668.75/x
  3. Step 3: Cross multiply
    143,332.32x = 197,805.62 × 79,668.75
  4. Step 4: Simplify right side
    143,332.32x = 15,758,926,090.03
  5. Step 5: Solve for x
    x = 15,758,926,090.03/143,332.32
  6. Step 6: Final answer
    x = 109,946.77

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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.