Home / 142,839.68-214,286.60-57,457.07

Finding the Fourth Proportional to 142,839.68, 214,286.60 and 57,457.07

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Solution

The fourth proportional to 142,839.68, 214,286.60 and 57,457.07 is: 86,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,839.68 : 214,286.60 = 57,457.07 : x
  2. Step 2: Convert to fraction form
    142,839.68/214,286.60 = 57,457.07/x
  3. Step 3: Cross multiply
    142,839.68x = 214,286.60 × 57,457.07
  4. Step 4: Simplify right side
    142,839.68x = 12,312,278,817.54
  5. Step 5: Solve for x
    x = 12,312,278,817.54/142,839.68
  6. Step 6: Final answer
    x = 86,196.49

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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.