Home / 133,572.06-183,957.75-103,245.66

Finding the Fourth Proportional to 133,572.06, 183,957.75 and 103,245.66

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Solution

The fourth proportional to 133,572.06, 183,957.75 and 103,245.66 is: 142,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,572.06 : 183,957.75 = 103,245.66 : x
  2. Step 2: Convert to fraction form
    133,572.06/183,957.75 = 103,245.66/x
  3. Step 3: Cross multiply
    133,572.06x = 183,957.75 × 103,245.66
  4. Step 4: Simplify right side
    133,572.06x = 18,992,839,310.87
  5. Step 5: Solve for x
    x = 18,992,839,310.87/133,572.06
  6. Step 6: Final answer
    x = 142,191.71

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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.