Home / 233,131.13-321,721.43-137,643.96

Finding the Fourth Proportional to 233,131.13, 321,721.43 and 137,643.96

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Solution

The fourth proportional to 233,131.13, 321,721.43 and 137,643.96 is: 189,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,131.13 : 321,721.43 = 137,643.96 : x
  2. Step 2: Convert to fraction form
    233,131.13/321,721.43 = 137,643.96/x
  3. Step 3: Cross multiply
    233,131.13x = 321,721.43 × 137,643.96
  4. Step 4: Simplify right side
    233,131.13x = 44,283,011,642.06
  5. Step 5: Solve for x
    x = 44,283,011,642.06/233,131.13
  6. Step 6: Final answer
    x = 189,948.94

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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.