Home / 143,131.08-214,824.78-105,228.12

Finding the Fourth Proportional to 143,131.08, 214,824.78 and 105,228.12

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Solution

The fourth proportional to 143,131.08, 214,824.78 and 105,228.12 is: 157,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,131.08 : 214,824.78 = 105,228.12 : x
  2. Step 2: Convert to fraction form
    143,131.08/214,824.78 = 105,228.12/x
  3. Step 3: Cross multiply
    143,131.08x = 214,824.78 × 105,228.12
  4. Step 4: Simplify right side
    143,131.08x = 22,605,607,728.81
  5. Step 5: Solve for x
    x = 22,605,607,728.81/143,131.08
  6. Step 6: Final answer
    x = 157,936.40

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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.