Home / 100,850.20-151,016.10-74,411.80

Finding the Fourth Proportional to 100,850.20, 151,016.10 and 74,411.80

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Solution

The fourth proportional to 100,850.20, 151,016.10 and 74,411.80 is: 111,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,850.20 : 151,016.10 = 74,411.80 : x
  2. Step 2: Convert to fraction form
    100,850.20/151,016.10 = 74,411.80/x
  3. Step 3: Cross multiply
    100,850.20x = 151,016.10 × 74,411.80
  4. Step 4: Simplify right side
    100,850.20x = 11,237,379,829.98
  5. Step 5: Solve for x
    x = 11,237,379,829.98/100,850.20
  6. Step 6: Final answer
    x = 111,426.45

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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.