Home / 143,426.51-214,914.99-90,724.67

Finding the Fourth Proportional to 143,426.51, 214,914.99 and 90,724.67

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Solution

The fourth proportional to 143,426.51, 214,914.99 and 90,724.67 is: 135,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,426.51 : 214,914.99 = 90,724.67 : x
  2. Step 2: Convert to fraction form
    143,426.51/214,914.99 = 90,724.67/x
  3. Step 3: Cross multiply
    143,426.51x = 214,914.99 × 90,724.67
  4. Step 4: Simplify right side
    143,426.51x = 19,498,092,083.09
  5. Step 5: Solve for x
    x = 19,498,092,083.09/143,426.51
  6. Step 6: Final answer
    x = 135,944.82

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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.