Home / 129,768.28-178,814.42-95,722.80

Finding the Fourth Proportional to 129,768.28, 178,814.42 and 95,722.80

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Solution

The fourth proportional to 129,768.28, 178,814.42 and 95,722.80 is: 131,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,768.28 : 178,814.42 = 95,722.80 : x
  2. Step 2: Convert to fraction form
    129,768.28/178,814.42 = 95,722.80/x
  3. Step 3: Cross multiply
    129,768.28x = 178,814.42 × 95,722.80
  4. Step 4: Simplify right side
    129,768.28x = 17,116,616,962.78
  5. Step 5: Solve for x
    x = 17,116,616,962.78/129,768.28
  6. Step 6: Final answer
    x = 131,901.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.