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Finding the Fourth Proportional to 140,985.51, 194,542.07 and 80,560.07

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Solution

The fourth proportional to 140,985.51, 194,542.07 and 80,560.07 is: 111,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,985.51 : 194,542.07 = 80,560.07 : x
  2. Step 2: Convert to fraction form
    140,985.51/194,542.07 = 80,560.07/x
  3. Step 3: Cross multiply
    140,985.51x = 194,542.07 × 80,560.07
  4. Step 4: Simplify right side
    140,985.51x = 15,672,322,005.83
  5. Step 5: Solve for x
    x = 15,672,322,005.83/140,985.51
  6. Step 6: Final answer
    x = 111,162.64

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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.