Home / 133,111.27-183,693.93-72,682.43

Finding the Fourth Proportional to 133,111.27, 183,693.93 and 72,682.43

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Solution

The fourth proportional to 133,111.27, 183,693.93 and 72,682.43 is: 100,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,111.27 : 183,693.93 = 72,682.43 : x
  2. Step 2: Convert to fraction form
    133,111.27/183,693.93 = 72,682.43/x
  3. Step 3: Cross multiply
    133,111.27x = 183,693.93 × 72,682.43
  4. Step 4: Simplify right side
    133,111.27x = 13,351,321,208.65
  5. Step 5: Solve for x
    x = 13,351,321,208.65/133,111.27
  6. Step 6: Final answer
    x = 100,301.96

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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.