Home / 133,112.56-183,694.40-72,683.17

Finding the Fourth Proportional to 133,112.56, 183,694.40 and 72,683.17

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Solution

The fourth proportional to 133,112.56, 183,694.40 and 72,683.17 is: 100,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,112.56 : 183,694.40 = 72,683.17 : x
  2. Step 2: Convert to fraction form
    133,112.56/183,694.40 = 72,683.17/x
  3. Step 3: Cross multiply
    133,112.56x = 183,694.40 × 72,683.17
  4. Step 4: Simplify right side
    133,112.56x = 13,351,491,303.25
  5. Step 5: Solve for x
    x = 13,351,491,303.25/133,112.56
  6. Step 6: Final answer
    x = 100,302.27

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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.