Home / 135,790.40-203,442.60-65,514.80

Finding the Fourth Proportional to 135,790.40, 203,442.60 and 65,514.80

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Solution

The fourth proportional to 135,790.40, 203,442.60 and 65,514.80 is: 98,154.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,790.40 : 203,442.60 = 65,514.80 : x
  2. Step 2: Convert to fraction form
    135,790.40/203,442.60 = 65,514.80/x
  3. Step 3: Cross multiply
    135,790.40x = 203,442.60 × 65,514.80
  4. Step 4: Simplify right side
    135,790.40x = 13,328,501,250.48
  5. Step 5: Solve for x
    x = 13,328,501,250.48/135,790.40
  6. Step 6: Final answer
    x = 98,154.96

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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.