Home / 214,381.14-321,574.43-81,225.63

Finding the Fourth Proportional to 214,381.14, 321,574.43 and 81,225.63

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Solution

The fourth proportional to 214,381.14, 321,574.43 and 81,225.63 is: 121,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,381.14 : 321,574.43 = 81,225.63 : x
  2. Step 2: Convert to fraction form
    214,381.14/321,574.43 = 81,225.63/x
  3. Step 3: Cross multiply
    214,381.14x = 321,574.43 × 81,225.63
  4. Step 4: Simplify right side
    214,381.14x = 26,120,085,262.51
  5. Step 5: Solve for x
    x = 26,120,085,262.51/214,381.14
  6. Step 6: Final answer
    x = 121,839.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.