Home / 133,109.24-183,694.53-72,683.72

Finding the Fourth Proportional to 133,109.24, 183,694.53 and 72,683.72

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Solution

The fourth proportional to 133,109.24, 183,694.53 and 72,683.72 is: 100,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,109.24 : 183,694.53 = 72,683.72 : x
  2. Step 2: Convert to fraction form
    133,109.24/183,694.53 = 72,683.72/x
  3. Step 3: Cross multiply
    133,109.24x = 183,694.53 × 72,683.72
  4. Step 4: Simplify right side
    133,109.24x = 13,351,600,865.58
  5. Step 5: Solve for x
    x = 13,351,600,865.58/133,109.24
  6. Step 6: Final answer
    x = 100,305.59

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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.