Home / 143,223.62-214,631.75-105,486.93

Finding the Fourth Proportional to 143,223.62, 214,631.75 and 105,486.93

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Solution

The fourth proportional to 143,223.62, 214,631.75 and 105,486.93 is: 158,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,223.62 : 214,631.75 = 105,486.93 : x
  2. Step 2: Convert to fraction form
    143,223.62/214,631.75 = 105,486.93/x
  3. Step 3: Cross multiply
    143,223.62x = 214,631.75 × 105,486.93
  4. Step 4: Simplify right side
    143,223.62x = 22,640,843,860.59
  5. Step 5: Solve for x
    x = 22,640,843,860.59/143,223.62
  6. Step 6: Final answer
    x = 158,080.38

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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.