Home / 133,086.42-183,651.41-72,645.06

Finding the Fourth Proportional to 133,086.42, 183,651.41 and 72,645.06

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Solution

The fourth proportional to 133,086.42, 183,651.41 and 72,645.06 is: 100,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,086.42 : 183,651.41 = 72,645.06 : x
  2. Step 2: Convert to fraction form
    133,086.42/183,651.41 = 72,645.06/x
  3. Step 3: Cross multiply
    133,086.42x = 183,651.41 × 72,645.06
  4. Step 4: Simplify right side
    133,086.42x = 13,341,367,698.53
  5. Step 5: Solve for x
    x = 13,341,367,698.53/133,086.42
  6. Step 6: Final answer
    x = 100,245.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.