Home / 180,145.92-270,209.09-91,397.12

Finding the Fourth Proportional to 180,145.92, 270,209.09 and 91,397.12

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Solution

The fourth proportional to 180,145.92, 270,209.09 and 91,397.12 is: 137,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,145.92 : 270,209.09 = 91,397.12 : x
  2. Step 2: Convert to fraction form
    180,145.92/270,209.09 = 91,397.12/x
  3. Step 3: Cross multiply
    180,145.92x = 270,209.09 × 91,397.12
  4. Step 4: Simplify right side
    180,145.92x = 24,696,333,144.12
  5. Step 5: Solve for x
    x = 24,696,333,144.12/180,145.92
  6. Step 6: Final answer
    x = 137,090.71

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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.