Home / 115,489.40-173,234.10-103,679.60

Finding the Fourth Proportional to 115,489.40, 173,234.10 and 103,679.60

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Solution

The fourth proportional to 115,489.40, 173,234.10 and 103,679.60 is: 155,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,489.40 : 173,234.10 = 103,679.60 : x
  2. Step 2: Convert to fraction form
    115,489.40/173,234.10 = 103,679.60/x
  3. Step 3: Cross multiply
    115,489.40x = 173,234.10 × 103,679.60
  4. Step 4: Simplify right side
    115,489.40x = 17,960,842,194.36
  5. Step 5: Solve for x
    x = 17,960,842,194.36/115,489.40
  6. Step 6: Final answer
    x = 155,519.40

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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.