Home / 113,731.20-170,726.40-67,010.40

Finding the Fourth Proportional to 113,731.20, 170,726.40 and 67,010.40

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Solution

The fourth proportional to 113,731.20, 170,726.40 and 67,010.40 is: 100,591.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,731.20 : 170,726.40 = 67,010.40 : x
  2. Step 2: Convert to fraction form
    113,731.20/170,726.40 = 67,010.40/x
  3. Step 3: Cross multiply
    113,731.20x = 170,726.40 × 67,010.40
  4. Step 4: Simplify right side
    113,731.20x = 11,440,444,354.56
  5. Step 5: Solve for x
    x = 11,440,444,354.56/113,731.20
  6. Step 6: Final answer
    x = 100,591.96

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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.