Home / 74,496.83-111,043.46-68,518.12

Finding the Fourth Proportional to 74,496.83, 111,043.46 and 68,518.12

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Solution

The fourth proportional to 74,496.83, 111,043.46 and 68,518.12 is: 102,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,496.83 : 111,043.46 = 68,518.12 : x
  2. Step 2: Convert to fraction form
    74,496.83/111,043.46 = 68,518.12/x
  3. Step 3: Cross multiply
    74,496.83x = 111,043.46 × 68,518.12
  4. Step 4: Simplify right side
    74,496.83x = 7,608,489,064.34
  5. Step 5: Solve for x
    x = 7,608,489,064.34/74,496.83
  6. Step 6: Final answer
    x = 102,131.72

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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.