Home / 128,898.36-193,344.62-75,926.39

Finding the Fourth Proportional to 128,898.36, 193,344.62 and 75,926.39

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Solution

The fourth proportional to 128,898.36, 193,344.62 and 75,926.39 is: 113,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,898.36 : 193,344.62 = 75,926.39 : x
  2. Step 2: Convert to fraction form
    128,898.36/193,344.62 = 75,926.39/x
  3. Step 3: Cross multiply
    128,898.36x = 193,344.62 × 75,926.39
  4. Step 4: Simplify right side
    128,898.36x = 14,679,957,676.17
  5. Step 5: Solve for x
    x = 14,679,957,676.17/128,898.36
  6. Step 6: Final answer
    x = 113,887.85

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1.5x scale

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.