Home / 95,446.80-143,170.20-90,003.60

Finding the Fourth Proportional to 95,446.80, 143,170.20 and 90,003.60

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Solution

The fourth proportional to 95,446.80, 143,170.20 and 90,003.60 is: 135,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,446.80 : 143,170.20 = 90,003.60 : x
  2. Step 2: Convert to fraction form
    95,446.80/143,170.20 = 90,003.60/x
  3. Step 3: Cross multiply
    95,446.80x = 143,170.20 × 90,003.60
  4. Step 4: Simplify right side
    95,446.80x = 12,885,833,412.72
  5. Step 5: Solve for x
    x = 12,885,833,412.72/95,446.80
  6. Step 6: Final answer
    x = 135,005.40

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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.