Home / 231,829.40-347,657.70-82,011.80

Finding the Fourth Proportional to 231,829.40, 347,657.70 and 82,011.80

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Solution

The fourth proportional to 231,829.40, 347,657.70 and 82,011.80 is: 122,987.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,829.40 : 347,657.70 = 82,011.80 : x
  2. Step 2: Convert to fraction form
    231,829.40/347,657.70 = 82,011.80/x
  3. Step 3: Cross multiply
    231,829.40x = 347,657.70 × 82,011.80
  4. Step 4: Simplify right side
    231,829.40x = 28,512,033,760.86
  5. Step 5: Solve for x
    x = 28,512,033,760.86/231,829.40
  6. Step 6: Final answer
    x = 122,987.14

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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.