Home / 511,043.45-766,568.13-131,938.29

Finding the Fourth Proportional to 511,043.45, 766,568.13 and 131,938.29

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Solution

The fourth proportional to 511,043.45, 766,568.13 and 131,938.29 is: 197,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,043.45 : 766,568.13 = 131,938.29 : x
  2. Step 2: Convert to fraction form
    511,043.45/766,568.13 = 131,938.29/x
  3. Step 3: Cross multiply
    511,043.45x = 766,568.13 × 131,938.29
  4. Step 4: Simplify right side
    511,043.45x = 101,139,688,240.70
  5. Step 5: Solve for x
    x = 101,139,688,240.70/511,043.45
  6. Step 6: Final answer
    x = 197,908.20

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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.