Home / 179,925.72-248,049.18-128,979.96

Finding the Fourth Proportional to 179,925.72, 248,049.18 and 128,979.96

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Solution

The fourth proportional to 179,925.72, 248,049.18 and 128,979.96 is: 177,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,925.72 : 248,049.18 = 128,979.96 : x
  2. Step 2: Convert to fraction form
    179,925.72/248,049.18 = 128,979.96/x
  3. Step 3: Cross multiply
    179,925.72x = 248,049.18 × 128,979.96
  4. Step 4: Simplify right side
    179,925.72x = 31,993,373,314.43
  5. Step 5: Solve for x
    x = 31,993,373,314.43/179,925.72
  6. Step 6: Final answer
    x = 177,814.34

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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.