Home / 140,212.88-193,515.99-89,172.40

Finding the Fourth Proportional to 140,212.88, 193,515.99 and 89,172.40

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Solution

The fourth proportional to 140,212.88, 193,515.99 and 89,172.40 is: 123,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,212.88 : 193,515.99 = 89,172.40 : x
  2. Step 2: Convert to fraction form
    140,212.88/193,515.99 = 89,172.40/x
  3. Step 3: Cross multiply
    140,212.88x = 193,515.99 × 89,172.40
  4. Step 4: Simplify right side
    140,212.88x = 17,256,285,266.68
  5. Step 5: Solve for x
    x = 17,256,285,266.68/140,212.88
  6. Step 6: Final answer
    x = 123,072.04

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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.