Home / 198,030-273,298.68-108,623.28

Finding the Fourth Proportional to 198,030, 273,298.68 and 108,623.28

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Solution

The fourth proportional to 198,030, 273,298.68 and 108,623.28 is: 149,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,030 : 273,298.68 = 108,623.28 : x
  2. Step 2: Convert to fraction form
    198,030/273,298.68 = 108,623.28/x
  3. Step 3: Cross multiply
    198,030x = 273,298.68 × 108,623.28
  4. Step 4: Simplify right side
    198,030x = 29,686,599,041.27
  5. Step 5: Solve for x
    x = 29,686,599,041.27/198,030
  6. Step 6: Final answer
    x = 149,909.60

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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.