Home / 199,350.42-299,150.13-81,021.72

Finding the Fourth Proportional to 199,350.42, 299,150.13 and 81,021.72

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Solution

The fourth proportional to 199,350.42, 299,150.13 and 81,021.72 is: 121,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,350.42 : 299,150.13 = 81,021.72 : x
  2. Step 2: Convert to fraction form
    199,350.42/299,150.13 = 81,021.72/x
  3. Step 3: Cross multiply
    199,350.42x = 299,150.13 × 81,021.72
  4. Step 4: Simplify right side
    199,350.42x = 24,237,658,070.82
  5. Step 5: Solve for x
    x = 24,237,658,070.82/199,350.42
  6. Step 6: Final answer
    x = 121,583.18

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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.