Home / 140,713.24-194,145.78-90,441.40

Finding the Fourth Proportional to 140,713.24, 194,145.78 and 90,441.40

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Solution

The fourth proportional to 140,713.24, 194,145.78 and 90,441.40 is: 124,784.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,713.24 : 194,145.78 = 90,441.40 : x
  2. Step 2: Convert to fraction form
    140,713.24/194,145.78 = 90,441.40/x
  3. Step 3: Cross multiply
    140,713.24x = 194,145.78 × 90,441.40
  4. Step 4: Simplify right side
    140,713.24x = 17,558,816,147.29
  5. Step 5: Solve for x
    x = 17,558,816,147.29/140,713.24
  6. Step 6: Final answer
    x = 124,784.39

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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.