Home / 199,941.40-299,798.70-81,474.04

Finding the Fourth Proportional to 199,941.40, 299,798.70 and 81,474.04

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Solution

The fourth proportional to 199,941.40, 299,798.70 and 81,474.04 is: 122,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,941.40 : 299,798.70 = 81,474.04 : x
  2. Step 2: Convert to fraction form
    199,941.40/299,798.70 = 81,474.04/x
  3. Step 3: Cross multiply
    199,941.40x = 299,798.70 × 81,474.04
  4. Step 4: Simplify right side
    199,941.40x = 24,425,811,275.75
  5. Step 5: Solve for x
    x = 24,425,811,275.75/199,941.40
  6. Step 6: Final answer
    x = 122,164.85

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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.