Home / 145,046.05-200,160.36-80,511.48

Finding the Fourth Proportional to 145,046.05, 200,160.36 and 80,511.48

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Solution

The fourth proportional to 145,046.05, 200,160.36 and 80,511.48 is: 111,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,046.05 : 200,160.36 = 80,511.48 : x
  2. Step 2: Convert to fraction form
    145,046.05/200,160.36 = 80,511.48/x
  3. Step 3: Cross multiply
    145,046.05x = 200,160.36 × 80,511.48
  4. Step 4: Simplify right side
    145,046.05x = 16,115,206,820.93
  5. Step 5: Solve for x
    x = 16,115,206,820.93/145,046.05
  6. Step 6: Final answer
    x = 111,104.07

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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.