Home / 147,742.12-203,884.50-80,674.12

Finding the Fourth Proportional to 147,742.12, 203,884.50 and 80,674.12

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Solution

The fourth proportional to 147,742.12, 203,884.50 and 80,674.12 is: 111,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,742.12 : 203,884.50 = 80,674.12 : x
  2. Step 2: Convert to fraction form
    147,742.12/203,884.50 = 80,674.12/x
  3. Step 3: Cross multiply
    147,742.12x = 203,884.50 × 80,674.12
  4. Step 4: Simplify right side
    147,742.12x = 16,448,202,619.14
  5. Step 5: Solve for x
    x = 16,448,202,619.14/147,742.12
  6. Step 6: Final answer
    x = 111,330.49

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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.