Home / 133,005.90-183,552.56-72,579.86

Finding the Fourth Proportional to 133,005.90, 183,552.56 and 72,579.86

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Solution

The fourth proportional to 133,005.90, 183,552.56 and 72,579.86 is: 100,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,005.90 : 183,552.56 = 72,579.86 : x
  2. Step 2: Convert to fraction form
    133,005.90/183,552.56 = 72,579.86/x
  3. Step 3: Cross multiply
    133,005.90x = 183,552.56 × 72,579.86
  4. Step 4: Simplify right side
    133,005.90x = 13,322,219,107.44
  5. Step 5: Solve for x
    x = 13,322,219,107.44/133,005.90
  6. Step 6: Final answer
    x = 100,162.62

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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.