Home / 180,212.77-270,398.28-85,511.41

Finding the Fourth Proportional to 180,212.77, 270,398.28 and 85,511.41

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Solution

The fourth proportional to 180,212.77, 270,398.28 and 85,511.41 is: 128,304.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,212.77 : 270,398.28 = 85,511.41 : x
  2. Step 2: Convert to fraction form
    180,212.77/270,398.28 = 85,511.41/x
  3. Step 3: Cross multiply
    180,212.77x = 270,398.28 × 85,511.41
  4. Step 4: Simplify right side
    180,212.77x = 23,122,138,184.37
  5. Step 5: Solve for x
    x = 23,122,138,184.37/180,212.77
  6. Step 6: Final answer
    x = 128,304.66

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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.