Home / 199,288.80-298,868.16-66,133.29

Finding the Fourth Proportional to 199,288.80, 298,868.16 and 66,133.29

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Solution

The fourth proportional to 199,288.80, 298,868.16 and 66,133.29 is: 99,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,288.80 : 298,868.16 = 66,133.29 : x
  2. Step 2: Convert to fraction form
    199,288.80/298,868.16 = 66,133.29/x
  3. Step 3: Cross multiply
    199,288.80x = 298,868.16 × 66,133.29
  4. Step 4: Simplify right side
    199,288.80x = 19,765,134,697.05
  5. Step 5: Solve for x
    x = 19,765,134,697.05/199,288.80
  6. Step 6: Final answer
    x = 99,178.35

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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.