Home / 133,147.14-183,735.54-72,705.75

Finding the Fourth Proportional to 133,147.14, 183,735.54 and 72,705.75

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Solution

The fourth proportional to 133,147.14, 183,735.54 and 72,705.75 is: 100,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,147.14 : 183,735.54 = 72,705.75 : x
  2. Step 2: Convert to fraction form
    133,147.14/183,735.54 = 72,705.75/x
  3. Step 3: Cross multiply
    133,147.14x = 183,735.54 × 72,705.75
  4. Step 4: Simplify right side
    133,147.14x = 13,358,630,237.36
  5. Step 5: Solve for x
    x = 13,358,630,237.36/133,147.14
  6. Step 6: Final answer
    x = 100,329.83

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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.