Home / 115,593.40-173,346.90-80,428.60

Finding the Fourth Proportional to 115,593.40, 173,346.90 and 80,428.60

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Solution

The fourth proportional to 115,593.40, 173,346.90 and 80,428.60 is: 120,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,593.40 : 173,346.90 = 80,428.60 : x
  2. Step 2: Convert to fraction form
    115,593.40/173,346.90 = 80,428.60/x
  3. Step 3: Cross multiply
    115,593.40x = 173,346.90 × 80,428.60
  4. Step 4: Simplify right side
    115,593.40x = 13,942,048,481.34
  5. Step 5: Solve for x
    x = 13,942,048,481.34/115,593.40
  6. Step 6: Final answer
    x = 120,612.84

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1.5x scale

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.