Home / 108,121.61-149,278.03-96,771.42

Finding the Fourth Proportional to 108,121.61, 149,278.03 and 96,771.42

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Solution

The fourth proportional to 108,121.61, 149,278.03 and 96,771.42 is: 133,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,121.61 : 149,278.03 = 96,771.42 : x
  2. Step 2: Convert to fraction form
    108,121.61/149,278.03 = 96,771.42/x
  3. Step 3: Cross multiply
    108,121.61x = 149,278.03 × 96,771.42
  4. Step 4: Simplify right side
    108,121.61x = 14,445,846,454.05
  5. Step 5: Solve for x
    x = 14,445,846,454.05/108,121.61
  6. Step 6: Final answer
    x = 133,607.39

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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.