Home / 103,927.21-143,323.90-68,104.21

Finding the Fourth Proportional to 103,927.21, 143,323.90 and 68,104.21

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Solution

The fourth proportional to 103,927.21, 143,323.90 and 68,104.21 is: 93,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,927.21 : 143,323.90 = 68,104.21 : x
  2. Step 2: Convert to fraction form
    103,927.21/143,323.90 = 68,104.21/x
  3. Step 3: Cross multiply
    103,927.21x = 143,323.90 × 68,104.21
  4. Step 4: Simplify right side
    103,927.21x = 9,760,960,983.62
  5. Step 5: Solve for x
    x = 9,760,960,983.62/103,927.21
  6. Step 6: Final answer
    x = 93,921.13

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1.5x scale

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.