Home / 142,098.80-195,975.96-85,499.60

Finding the Fourth Proportional to 142,098.80, 195,975.96 and 85,499.60

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Solution

The fourth proportional to 142,098.80, 195,975.96 and 85,499.60 is: 117,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,098.80 : 195,975.96 = 85,499.60 : x
  2. Step 2: Convert to fraction form
    142,098.80/195,975.96 = 85,499.60/x
  3. Step 3: Cross multiply
    142,098.80x = 195,975.96 × 85,499.60
  4. Step 4: Simplify right side
    142,098.80x = 16,755,866,189.62
  5. Step 5: Solve for x
    x = 16,755,866,189.62/142,098.80
  6. Step 6: Final answer
    x = 117,917.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.