Home / 128,614.83-177,331.64-94,519.50

Finding the Fourth Proportional to 128,614.83, 177,331.64 and 94,519.50

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Solution

The fourth proportional to 128,614.83, 177,331.64 and 94,519.50 is: 130,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,614.83 : 177,331.64 = 94,519.50 : x
  2. Step 2: Convert to fraction form
    128,614.83/177,331.64 = 94,519.50/x
  3. Step 3: Cross multiply
    128,614.83x = 177,331.64 × 94,519.50
  4. Step 4: Simplify right side
    128,614.83x = 16,761,297,474.38
  5. Step 5: Solve for x
    x = 16,761,297,474.38/128,614.83
  6. Step 6: Final answer
    x = 130,321.65

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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.