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Finding the Fourth Proportional to 199,125.76, 297,986.76 and 124,280.96

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Solution

The fourth proportional to 199,125.76, 297,986.76 and 124,280.96 is: 185,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,125.76 : 297,986.76 = 124,280.96 : x
  2. Step 2: Convert to fraction form
    199,125.76/297,986.76 = 124,280.96/x
  3. Step 3: Cross multiply
    199,125.76x = 297,986.76 × 124,280.96
  4. Step 4: Simplify right side
    199,125.76x = 37,034,080,600.09
  5. Step 5: Solve for x
    x = 37,034,080,600.09/199,125.76
  6. Step 6: Final answer
    x = 185,983.37

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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.