Home / 119,136.10-178,704.15-113,887.30

Finding the Fourth Proportional to 119,136.10, 178,704.15 and 113,887.30

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Solution

The fourth proportional to 119,136.10, 178,704.15 and 113,887.30 is: 170,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,136.10 : 178,704.15 = 113,887.30 : x
  2. Step 2: Convert to fraction form
    119,136.10/178,704.15 = 113,887.30/x
  3. Step 3: Cross multiply
    119,136.10x = 178,704.15 × 113,887.30
  4. Step 4: Simplify right side
    119,136.10x = 20,352,133,142.30
  5. Step 5: Solve for x
    x = 20,352,133,142.30/119,136.10
  6. Step 6: Final answer
    x = 170,830.95

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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.