Home / 103,814.84-143,115.18-73,955

Finding the Fourth Proportional to 103,814.84, 143,115.18 and 73,955

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Solution

The fourth proportional to 103,814.84, 143,115.18 and 73,955 is: 101,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,814.84 : 143,115.18 = 73,955 : x
  2. Step 2: Convert to fraction form
    103,814.84/143,115.18 = 73,955/x
  3. Step 3: Cross multiply
    103,814.84x = 143,115.18 × 73,955
  4. Step 4: Simplify right side
    103,814.84x = 10,584,083,136.90
  5. Step 5: Solve for x
    x = 10,584,083,136.90/103,814.84
  6. Step 6: Final answer
    x = 101,951.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.