Home / 199,138.05-298,675.22-66,012.93

Finding the Fourth Proportional to 199,138.05, 298,675.22 and 66,012.93

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Solution

The fourth proportional to 199,138.05, 298,675.22 and 66,012.93 is: 99,008.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,138.05 : 298,675.22 = 66,012.93 : x
  2. Step 2: Convert to fraction form
    199,138.05/298,675.22 = 66,012.93/x
  3. Step 3: Cross multiply
    199,138.05x = 298,675.22 × 66,012.93
  4. Step 4: Simplify right side
    199,138.05x = 19,716,426,060.53
  5. Step 5: Solve for x
    x = 19,716,426,060.53/199,138.05
  6. Step 6: Final answer
    x = 99,008.83

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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.