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Finding the Fourth Proportional to 103,324.78, 142,582.36 and 57,998.67

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Solution

The fourth proportional to 103,324.78, 142,582.36 and 57,998.67 is: 80,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,324.78 : 142,582.36 = 57,998.67 : x
  2. Step 2: Convert to fraction form
    103,324.78/142,582.36 = 57,998.67/x
  3. Step 3: Cross multiply
    103,324.78x = 142,582.36 × 57,998.67
  4. Step 4: Simplify right side
    103,324.78x = 8,269,587,245.46
  5. Step 5: Solve for x
    x = 8,269,587,245.46/103,324.78
  6. Step 6: Final answer
    x = 80,034.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.