Home / 511,787.31-767,514.65-170,139.03

Finding the Fourth Proportional to 511,787.31, 767,514.65 and 170,139.03

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Solution

The fourth proportional to 511,787.31, 767,514.65 and 170,139.03 is: 255,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,787.31 : 767,514.65 = 170,139.03 : x
  2. Step 2: Convert to fraction form
    511,787.31/767,514.65 = 170,139.03/x
  3. Step 3: Cross multiply
    511,787.31x = 767,514.65 × 170,139.03
  4. Step 4: Simplify right side
    511,787.31x = 130,584,197,211.09
  5. Step 5: Solve for x
    x = 130,584,197,211.09/511,787.31
  6. Step 6: Final answer
    x = 255,153.25

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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.