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Finding the Fourth Proportional to 133,244.80, 183,873.54 and 72,815.25

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Solution

The fourth proportional to 133,244.80, 183,873.54 and 72,815.25 is: 100,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,244.80 : 183,873.54 = 72,815.25 : x
  2. Step 2: Convert to fraction form
    133,244.80/183,873.54 = 72,815.25/x
  3. Step 3: Cross multiply
    133,244.80x = 183,873.54 × 72,815.25
  4. Step 4: Simplify right side
    133,244.80x = 13,388,798,746.07
  5. Step 5: Solve for x
    x = 13,388,798,746.07/133,244.80
  6. Step 6: Final answer
    x = 100,482.71

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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.