Home / 143,315.40-214,975.20-54,573.82

Finding the Fourth Proportional to 143,315.40, 214,975.20 and 54,573.82

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Solution

The fourth proportional to 143,315.40, 214,975.20 and 54,573.82 is: 81,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315.40 : 214,975.20 = 54,573.82 : x
  2. Step 2: Convert to fraction form
    143,315.40/214,975.20 = 54,573.82/x
  3. Step 3: Cross multiply
    143,315.40x = 214,975.20 × 54,573.82
  4. Step 4: Simplify right side
    143,315.40x = 11,732,017,869.26
  5. Step 5: Solve for x
    x = 11,732,017,869.26/143,315.40
  6. Step 6: Final answer
    x = 81,861.53

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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.