Home / 135,173.09-186,535.17-74,741.73

Finding the Fourth Proportional to 135,173.09, 186,535.17 and 74,741.73

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Solution

The fourth proportional to 135,173.09, 186,535.17 and 74,741.73 is: 103,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,173.09 : 186,535.17 = 74,741.73 : x
  2. Step 2: Convert to fraction form
    135,173.09/186,535.17 = 74,741.73/x
  3. Step 3: Cross multiply
    135,173.09x = 186,535.17 × 74,741.73
  4. Step 4: Simplify right side
    135,173.09x = 13,941,961,311.64
  5. Step 5: Solve for x
    x = 13,941,961,311.64/135,173.09
  6. Step 6: Final answer
    x = 103,141.54

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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.