Home / 238,913.67-358,403.45-81,099.75

Finding the Fourth Proportional to 238,913.67, 358,403.45 and 81,099.75

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Solution

The fourth proportional to 238,913.67, 358,403.45 and 81,099.75 is: 121,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,913.67 : 358,403.45 = 81,099.75 : x
  2. Step 2: Convert to fraction form
    238,913.67/358,403.45 = 81,099.75/x
  3. Step 3: Cross multiply
    238,913.67x = 358,403.45 × 81,099.75
  4. Step 4: Simplify right side
    238,913.67x = 29,066,429,788.64
  5. Step 5: Solve for x
    x = 29,066,429,788.64/238,913.67
  6. Step 6: Final answer
    x = 121,660.81

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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.