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Finding the Fourth Proportional to 133,668, 184,461.84 and 79,955.28

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Solution

The fourth proportional to 133,668, 184,461.84 and 79,955.28 is: 110,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,668 : 184,461.84 = 79,955.28 : x
  2. Step 2: Convert to fraction form
    133,668/184,461.84 = 79,955.28/x
  3. Step 3: Cross multiply
    133,668x = 184,461.84 × 79,955.28
  4. Step 4: Simplify right side
    133,668x = 14,748,698,066.52
  5. Step 5: Solve for x
    x = 14,748,698,066.52/133,668
  6. Step 6: Final answer
    x = 110,338.29

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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.