Home / 143,206.14-214,869.96-76,629

Finding the Fourth Proportional to 143,206.14, 214,869.96 and 76,629

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Solution

The fourth proportional to 143,206.14, 214,869.96 and 76,629 is: 114,976.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,206.14 : 214,869.96 = 76,629 : x
  2. Step 2: Convert to fraction form
    143,206.14/214,869.96 = 76,629/x
  3. Step 3: Cross multiply
    143,206.14x = 214,869.96 × 76,629
  4. Step 4: Simplify right side
    143,206.14x = 16,465,270,164.84
  5. Step 5: Solve for x
    x = 16,465,270,164.84/143,206.14
  6. Step 6: Final answer
    x = 114,976.01

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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.