Home / 128,958.28-193,492.09-62,447.96

Finding the Fourth Proportional to 128,958.28, 193,492.09 and 62,447.96

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Solution

The fourth proportional to 128,958.28, 193,492.09 and 62,447.96 is: 93,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,958.28 : 193,492.09 = 62,447.96 : x
  2. Step 2: Convert to fraction form
    128,958.28/193,492.09 = 62,447.96/x
  3. Step 3: Cross multiply
    128,958.28x = 193,492.09 × 62,447.96
  4. Step 4: Simplify right side
    128,958.28x = 12,083,186,858.43
  5. Step 5: Solve for x
    x = 12,083,186,858.43/128,958.28
  6. Step 6: Final answer
    x = 93,698.42

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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.