Home / 97,400.40-146,100.60-80,997.90

Finding the Fourth Proportional to 97,400.40, 146,100.60 and 80,997.90

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Solution

The fourth proportional to 97,400.40, 146,100.60 and 80,997.90 is: 121,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,400.40 : 146,100.60 = 80,997.90 : x
  2. Step 2: Convert to fraction form
    97,400.40/146,100.60 = 80,997.90/x
  3. Step 3: Cross multiply
    97,400.40x = 146,100.60 × 80,997.90
  4. Step 4: Simplify right side
    97,400.40x = 11,833,841,788.74
  5. Step 5: Solve for x
    x = 11,833,841,788.74/97,400.40
  6. Step 6: Final answer
    x = 121,496.85

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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.