Home / 115,503.40-173,255.10-103,693.60

Finding the Fourth Proportional to 115,503.40, 173,255.10 and 103,693.60

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Solution

The fourth proportional to 115,503.40, 173,255.10 and 103,693.60 is: 155,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503.40 : 173,255.10 = 103,693.60 : x
  2. Step 2: Convert to fraction form
    115,503.40/173,255.10 = 103,693.60/x
  3. Step 3: Cross multiply
    115,503.40x = 173,255.10 × 103,693.60
  4. Step 4: Simplify right side
    115,503.40x = 17,965,445,037.36
  5. Step 5: Solve for x
    x = 17,965,445,037.36/115,503.40
  6. Step 6: Final answer
    x = 155,540.40

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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.