Home / 94,112.40-140,491.64-80,640.33

Finding the Fourth Proportional to 94,112.40, 140,491.64 and 80,640.33

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Solution

The fourth proportional to 94,112.40, 140,491.64 and 80,640.33 is: 120,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,112.40 : 140,491.64 = 80,640.33 : x
  2. Step 2: Convert to fraction form
    94,112.40/140,491.64 = 80,640.33/x
  3. Step 3: Cross multiply
    94,112.40x = 140,491.64 × 80,640.33
  4. Step 4: Simplify right side
    94,112.40x = 11,329,291,808.64
  5. Step 5: Solve for x
    x = 11,329,291,808.64/94,112.40
  6. Step 6: Final answer
    x = 120,380.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.