Home / 113,836.80-170,755.20-102,561.60

Finding the Fourth Proportional to 113,836.80, 170,755.20 and 102,561.60

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Solution

The fourth proportional to 113,836.80, 170,755.20 and 102,561.60 is: 153,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,836.80 : 170,755.20 = 102,561.60 : x
  2. Step 2: Convert to fraction form
    113,836.80/170,755.20 = 102,561.60/x
  3. Step 3: Cross multiply
    113,836.80x = 170,755.20 × 102,561.60
  4. Step 4: Simplify right side
    113,836.80x = 17,512,926,520.32
  5. Step 5: Solve for x
    x = 17,512,926,520.32/113,836.80
  6. Step 6: Final answer
    x = 153,842.40

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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.