Home / 233,121.51-321,707.16-131,147.01

Finding the Fourth Proportional to 233,121.51, 321,707.16 and 131,147.01

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Solution

The fourth proportional to 233,121.51, 321,707.16 and 131,147.01 is: 180,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,121.51 : 321,707.16 = 131,147.01 : x
  2. Step 2: Convert to fraction form
    233,121.51/321,707.16 = 131,147.01/x
  3. Step 3: Cross multiply
    233,121.51x = 321,707.16 × 131,147.01
  4. Step 4: Simplify right side
    233,121.51x = 42,190,932,129.59
  5. Step 5: Solve for x
    x = 42,190,932,129.59/233,121.51
  6. Step 6: Final answer
    x = 180,982.58

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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.