Home / 136,400.40-204,600.60-89,161.20

Finding the Fourth Proportional to 136,400.40, 204,600.60 and 89,161.20

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Solution

The fourth proportional to 136,400.40, 204,600.60 and 89,161.20 is: 133,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,400.40 : 204,600.60 = 89,161.20 : x
  2. Step 2: Convert to fraction form
    136,400.40/204,600.60 = 89,161.20/x
  3. Step 3: Cross multiply
    136,400.40x = 204,600.60 × 89,161.20
  4. Step 4: Simplify right side
    136,400.40x = 18,242,435,016.72
  5. Step 5: Solve for x
    x = 18,242,435,016.72/136,400.40
  6. Step 6: Final answer
    x = 133,741.80

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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.