Home / 128,933.83-193,396.45-53,029.74

Finding the Fourth Proportional to 128,933.83, 193,396.45 and 53,029.74

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Solution

The fourth proportional to 128,933.83, 193,396.45 and 53,029.74 is: 79,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,933.83 : 193,396.45 = 53,029.74 : x
  2. Step 2: Convert to fraction form
    128,933.83/193,396.45 = 53,029.74/x
  3. Step 3: Cross multiply
    128,933.83x = 193,396.45 × 53,029.74
  4. Step 4: Simplify right side
    128,933.83x = 10,255,763,460.42
  5. Step 5: Solve for x
    x = 10,255,763,460.42/128,933.83
  6. Step 6: Final answer
    x = 79,542.84

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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.