Home / 123,336.72-170,204.64-66,748.08

Finding the Fourth Proportional to 123,336.72, 170,204.64 and 66,748.08

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Solution

The fourth proportional to 123,336.72, 170,204.64 and 66,748.08 is: 92,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,336.72 : 170,204.64 = 66,748.08 : x
  2. Step 2: Convert to fraction form
    123,336.72/170,204.64 = 66,748.08/x
  3. Step 3: Cross multiply
    123,336.72x = 170,204.64 × 66,748.08
  4. Step 4: Simplify right side
    123,336.72x = 11,360,832,927.09
  5. Step 5: Solve for x
    x = 11,360,832,927.09/123,336.72
  6. Step 6: Final answer
    x = 92,112.33

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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.