Home / 198,923.06-298,504.37-72,574.40

Finding the Fourth Proportional to 198,923.06, 298,504.37 and 72,574.40

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Solution

The fourth proportional to 198,923.06, 298,504.37 and 72,574.40 is: 108,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,923.06 : 298,504.37 = 72,574.40 : x
  2. Step 2: Convert to fraction form
    198,923.06/298,504.37 = 72,574.40/x
  3. Step 3: Cross multiply
    198,923.06x = 298,504.37 × 72,574.40
  4. Step 4: Simplify right side
    198,923.06x = 21,663,776,477.82
  5. Step 5: Solve for x
    x = 21,663,776,477.82/198,923.06
  6. Step 6: Final answer
    x = 108,905.30

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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.