Home / 199,444.72-298,917.98-128,177.68

Finding the Fourth Proportional to 199,444.72, 298,917.98 and 128,177.68

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Solution

The fourth proportional to 199,444.72, 298,917.98 and 128,177.68 is: 192,106.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,444.72 : 298,917.98 = 128,177.68 : x
  2. Step 2: Convert to fraction form
    199,444.72/298,917.98 = 128,177.68/x
  3. Step 3: Cross multiply
    199,444.72x = 298,917.98 × 128,177.68
  4. Step 4: Simplify right side
    199,444.72x = 38,314,611,798.50
  5. Step 5: Solve for x
    x = 38,314,611,798.50/199,444.72
  6. Step 6: Final answer
    x = 192,106.43

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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.