Home / 133,148.14-183,736.92-72,706.75

Finding the Fourth Proportional to 133,148.14, 183,736.92 and 72,706.75

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Solution

The fourth proportional to 133,148.14, 183,736.92 and 72,706.75 is: 100,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,148.14 : 183,736.92 = 72,706.75 : x
  2. Step 2: Convert to fraction form
    133,148.14/183,736.92 = 72,706.75/x
  3. Step 3: Cross multiply
    133,148.14x = 183,736.92 × 72,706.75
  4. Step 4: Simplify right side
    133,148.14x = 13,358,914,308.21
  5. Step 5: Solve for x
    x = 13,358,914,308.21/133,148.14
  6. Step 6: Final answer
    x = 100,331.21

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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.