Home / 180,741.14-271,129.74-66,919.34

Finding the Fourth Proportional to 180,741.14, 271,129.74 and 66,919.34

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Solution

The fourth proportional to 180,741.14, 271,129.74 and 66,919.34 is: 100,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,741.14 : 271,129.74 = 66,919.34 : x
  2. Step 2: Convert to fraction form
    180,741.14/271,129.74 = 66,919.34/x
  3. Step 3: Cross multiply
    180,741.14x = 271,129.74 × 66,919.34
  4. Step 4: Simplify right side
    180,741.14x = 18,143,823,255.17
  5. Step 5: Solve for x
    x = 18,143,823,255.17/180,741.14
  6. Step 6: Final answer
    x = 100,385.69

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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.