Home / 140,889.48-194,447.40-87,191.80

Finding the Fourth Proportional to 140,889.48, 194,447.40 and 87,191.80

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Solution

The fourth proportional to 140,889.48, 194,447.40 and 87,191.80 is: 120,337.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,889.48 : 194,447.40 = 87,191.80 : x
  2. Step 2: Convert to fraction form
    140,889.48/194,447.40 = 87,191.80/x
  3. Step 3: Cross multiply
    140,889.48x = 194,447.40 × 87,191.80
  4. Step 4: Simplify right side
    140,889.48x = 16,954,218,811.32
  5. Step 5: Solve for x
    x = 16,954,218,811.32/140,889.48
  6. Step 6: Final answer
    x = 120,337.01

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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.