Home / 122,115.16-183,193.52-42,131.44

Finding the Fourth Proportional to 122,115.16, 183,193.52 and 42,131.44

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Solution

The fourth proportional to 122,115.16, 183,193.52 and 42,131.44 is: 63,204.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,115.16 : 183,193.52 = 42,131.44 : x
  2. Step 2: Convert to fraction form
    122,115.16/183,193.52 = 42,131.44/x
  3. Step 3: Cross multiply
    122,115.16x = 183,193.52 × 42,131.44
  4. Step 4: Simplify right side
    122,115.16x = 7,718,206,814.60
  5. Step 5: Solve for x
    x = 7,718,206,814.60/122,115.16
  6. Step 6: Final answer
    x = 63,204.33

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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.