Home / 149,945.64-206,930.55-81,967.23

Finding the Fourth Proportional to 149,945.64, 206,930.55 and 81,967.23

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Solution

The fourth proportional to 149,945.64, 206,930.55 and 81,967.23 is: 113,117.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,945.64 : 206,930.55 = 81,967.23 : x
  2. Step 2: Convert to fraction form
    149,945.64/206,930.55 = 81,967.23/x
  3. Step 3: Cross multiply
    149,945.64x = 206,930.55 × 81,967.23
  4. Step 4: Simplify right side
    149,945.64x = 16,961,523,985.88
  5. Step 5: Solve for x
    x = 16,961,523,985.88/149,945.64
  6. Step 6: Final answer
    x = 113,117.82

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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.