Home / 114,704.20-172,056.30-86,710.60

Finding the Fourth Proportional to 114,704.20, 172,056.30 and 86,710.60

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Solution

The fourth proportional to 114,704.20, 172,056.30 and 86,710.60 is: 130,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,704.20 : 172,056.30 = 86,710.60 : x
  2. Step 2: Convert to fraction form
    114,704.20/172,056.30 = 86,710.60/x
  3. Step 3: Cross multiply
    114,704.20x = 172,056.30 × 86,710.60
  4. Step 4: Simplify right side
    114,704.20x = 14,919,105,006.78
  5. Step 5: Solve for x
    x = 14,919,105,006.78/114,704.20
  6. Step 6: Final answer
    x = 130,065.90

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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.