Home / 128,763.14-193,168.90-51,832.00

Finding the Fourth Proportional to 128,763.14, 193,168.90 and 51,832.00

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Solution

The fourth proportional to 128,763.14, 193,168.90 and 51,832.00 is: 77,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,763.14 : 193,168.90 = 51,832.00 : x
  2. Step 2: Convert to fraction form
    128,763.14/193,168.90 = 51,832.00/x
  3. Step 3: Cross multiply
    128,763.14x = 193,168.90 × 51,832.00
  4. Step 4: Simplify right side
    128,763.14x = 10,012,330,731.05
  5. Step 5: Solve for x
    x = 10,012,330,731.05/128,763.14
  6. Step 6: Final answer
    x = 77,757.74

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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.