Home / 143,632.08-198,208.76-79,968.51

Finding the Fourth Proportional to 143,632.08, 198,208.76 and 79,968.51

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Solution

The fourth proportional to 143,632.08, 198,208.76 and 79,968.51 is: 110,354.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,632.08 : 198,208.76 = 79,968.51 : x
  2. Step 2: Convert to fraction form
    143,632.08/198,208.76 = 79,968.51/x
  3. Step 3: Cross multiply
    143,632.08x = 198,208.76 × 79,968.51
  4. Step 4: Simplify right side
    143,632.08x = 15,850,458,806.31
  5. Step 5: Solve for x
    x = 15,850,458,806.31/143,632.08
  6. Step 6: Final answer
    x = 110,354.59

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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.