Home / 140,207.92-210,380.49-86,885.64

Finding the Fourth Proportional to 140,207.92, 210,380.49 and 86,885.64

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Solution

The fourth proportional to 140,207.92, 210,380.49 and 86,885.64 is: 130,370.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,207.92 : 210,380.49 = 86,885.64 : x
  2. Step 2: Convert to fraction form
    140,207.92/210,380.49 = 86,885.64/x
  3. Step 3: Cross multiply
    140,207.92x = 210,380.49 × 86,885.64
  4. Step 4: Simplify right side
    140,207.92x = 18,279,043,517.16
  5. Step 5: Solve for x
    x = 18,279,043,517.16/140,207.92
  6. Step 6: Final answer
    x = 130,370.98

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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.