Home / 140,723.40-210,825.90-131,392.20

Finding the Fourth Proportional to 140,723.40, 210,825.90 and 131,392.20

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Solution

The fourth proportional to 140,723.40, 210,825.90 and 131,392.20 is: 196,846.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,723.40 : 210,825.90 = 131,392.20 : x
  2. Step 2: Convert to fraction form
    140,723.40/210,825.90 = 131,392.20/x
  3. Step 3: Cross multiply
    140,723.40x = 210,825.90 × 131,392.20
  4. Step 4: Simplify right side
    140,723.40x = 27,700,878,817.98
  5. Step 5: Solve for x
    x = 27,700,878,817.98/140,723.40
  6. Step 6: Final answer
    x = 196,846.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.