Home / 143,668.31-198,160.31-122,008.51

Finding the Fourth Proportional to 143,668.31, 198,160.31 and 122,008.51

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Solution

The fourth proportional to 143,668.31, 198,160.31 and 122,008.51 is: 168,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,668.31 : 198,160.31 = 122,008.51 : x
  2. Step 2: Convert to fraction form
    143,668.31/198,160.31 = 122,008.51/x
  3. Step 3: Cross multiply
    143,668.31x = 198,160.31 × 122,008.51
  4. Step 4: Simplify right side
    143,668.31x = 24,177,242,563.39
  5. Step 5: Solve for x
    x = 24,177,242,563.39/143,668.31
  6. Step 6: Final answer
    x = 168,285.15

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1.5x scale

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.