Home / 198,679.04-274,171.08-108,035.20

Finding the Fourth Proportional to 198,679.04, 274,171.08 and 108,035.20

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Solution

The fourth proportional to 198,679.04, 274,171.08 and 108,035.20 is: 149,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,679.04 : 274,171.08 = 108,035.20 : x
  2. Step 2: Convert to fraction form
    198,679.04/274,171.08 = 108,035.20/x
  3. Step 3: Cross multiply
    198,679.04x = 274,171.08 × 108,035.20
  4. Step 4: Simplify right side
    198,679.04x = 29,620,127,462.02
  5. Step 5: Solve for x
    x = 29,620,127,462.02/198,679.04
  6. Step 6: Final answer
    x = 149,085.32

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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.