Home / 199,385.03-299,134.04-81,141.23

Finding the Fourth Proportional to 199,385.03, 299,134.04 and 81,141.23

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Solution

The fourth proportional to 199,385.03, 299,134.04 and 81,141.23 is: 121,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,385.03 : 299,134.04 = 81,141.23 : x
  2. Step 2: Convert to fraction form
    199,385.03/299,134.04 = 81,141.23/x
  3. Step 3: Cross multiply
    199,385.03x = 299,134.04 × 81,141.23
  4. Step 4: Simplify right side
    199,385.03x = 24,272,102,039.09
  5. Step 5: Solve for x
    x = 24,272,102,039.09/199,385.03
  6. Step 6: Final answer
    x = 121,734.83

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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.