Home / 140,955.52-194,620.70-90,742

Finding the Fourth Proportional to 140,955.52, 194,620.70 and 90,742

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Solution

The fourth proportional to 140,955.52, 194,620.70 and 90,742 is: 125,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,955.52 : 194,620.70 = 90,742 : x
  2. Step 2: Convert to fraction form
    140,955.52/194,620.70 = 90,742/x
  3. Step 3: Cross multiply
    140,955.52x = 194,620.70 × 90,742
  4. Step 4: Simplify right side
    140,955.52x = 17,660,271,559.40
  5. Step 5: Solve for x
    x = 17,660,271,559.40/140,955.52
  6. Step 6: Final answer
    x = 125,289.68

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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.