Home / 113,489.40-170,234.10-104,935.80

Finding the Fourth Proportional to 113,489.40, 170,234.10 and 104,935.80

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Solution

The fourth proportional to 113,489.40, 170,234.10 and 104,935.80 is: 157,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,489.40 : 170,234.10 = 104,935.80 : x
  2. Step 2: Convert to fraction form
    113,489.40/170,234.10 = 104,935.80/x
  3. Step 3: Cross multiply
    113,489.40x = 170,234.10 × 104,935.80
  4. Step 4: Simplify right side
    113,489.40x = 17,863,651,470.78
  5. Step 5: Solve for x
    x = 17,863,651,470.78/113,489.40
  6. Step 6: Final answer
    x = 157,403.70

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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.