Home / 143,438.45-214,887.74-84,097.85

Finding the Fourth Proportional to 143,438.45, 214,887.74 and 84,097.85

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Solution

The fourth proportional to 143,438.45, 214,887.74 and 84,097.85 is: 125,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,438.45 : 214,887.74 = 84,097.85 : x
  2. Step 2: Convert to fraction form
    143,438.45/214,887.74 = 84,097.85/x
  3. Step 3: Cross multiply
    143,438.45x = 214,887.74 × 84,097.85
  4. Step 4: Simplify right side
    143,438.45x = 18,071,595,430.43
  5. Step 5: Solve for x
    x = 18,071,595,430.43/143,438.45
  6. Step 6: Final answer
    x = 125,988.51

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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.