Home / 143,291.12-214,732.99-105,554.43

Finding the Fourth Proportional to 143,291.12, 214,732.99 and 105,554.43

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Solution

The fourth proportional to 143,291.12, 214,732.99 and 105,554.43 is: 158,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,291.12 : 214,732.99 = 105,554.43 : x
  2. Step 2: Convert to fraction form
    143,291.12/214,732.99 = 105,554.43/x
  3. Step 3: Cross multiply
    143,291.12x = 214,732.99 × 105,554.43
  4. Step 4: Simplify right side
    143,291.12x = 22,666,018,493.59
  5. Step 5: Solve for x
    x = 22,666,018,493.59/143,291.12
  6. Step 6: Final answer
    x = 158,181.60

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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.