Home / 108,453.75-149,644.89-68,144.16

Finding the Fourth Proportional to 108,453.75, 149,644.89 and 68,144.16

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Solution

The fourth proportional to 108,453.75, 149,644.89 and 68,144.16 is: 94,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,453.75 : 149,644.89 = 68,144.16 : x
  2. Step 2: Convert to fraction form
    108,453.75/149,644.89 = 68,144.16/x
  3. Step 3: Cross multiply
    108,453.75x = 149,644.89 × 68,144.16
  4. Step 4: Simplify right side
    108,453.75x = 10,197,425,327.34
  5. Step 5: Solve for x
    x = 10,197,425,327.34/108,453.75
  6. Step 6: Final answer
    x = 94,025.57

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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.