Home / 170,861.10-256,291.65-111,878.70

Finding the Fourth Proportional to 170,861.10, 256,291.65 and 111,878.70

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Solution

The fourth proportional to 170,861.10, 256,291.65 and 111,878.70 is: 167,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,861.10 : 256,291.65 = 111,878.70 : x
  2. Step 2: Convert to fraction form
    170,861.10/256,291.65 = 111,878.70/x
  3. Step 3: Cross multiply
    170,861.10x = 256,291.65 × 111,878.70
  4. Step 4: Simplify right side
    170,861.10x = 28,673,576,622.86
  5. Step 5: Solve for x
    x = 28,673,576,622.86/170,861.10
  6. Step 6: Final answer
    x = 167,818.05

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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.