Home / 133,074.90-183,635.60-72,633.50

Finding the Fourth Proportional to 133,074.90, 183,635.60 and 72,633.50

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Solution

The fourth proportional to 133,074.90, 183,635.60 and 72,633.50 is: 100,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074.90 : 183,635.60 = 72,633.50 : x
  2. Step 2: Convert to fraction form
    133,074.90/183,635.60 = 72,633.50/x
  3. Step 3: Cross multiply
    133,074.90x = 183,635.60 × 72,633.50
  4. Step 4: Simplify right side
    133,074.90x = 13,338,096,352.60
  5. Step 5: Solve for x
    x = 13,338,096,352.60/133,074.90
  6. Step 6: Final answer
    x = 100,229.99

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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.