Home / 129,855.62-178,996.06-95,754.89

Finding the Fourth Proportional to 129,855.62, 178,996.06 and 95,754.89

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Solution

The fourth proportional to 129,855.62, 178,996.06 and 95,754.89 is: 131,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,855.62 : 178,996.06 = 95,754.89 : x
  2. Step 2: Convert to fraction form
    129,855.62/178,996.06 = 95,754.89/x
  3. Step 3: Cross multiply
    129,855.62x = 178,996.06 × 95,754.89
  4. Step 4: Simplify right side
    129,855.62x = 17,139,748,602.92
  5. Step 5: Solve for x
    x = 17,139,748,602.92/129,855.62
  6. Step 6: Final answer
    x = 131,990.81

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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.