Home / 123,340.56-170,213.07-69,630.54

Finding the Fourth Proportional to 123,340.56, 170,213.07 and 69,630.54

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Solution

The fourth proportional to 123,340.56, 170,213.07 and 69,630.54 is: 96,091.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.56 : 170,213.07 = 69,630.54 : x
  2. Step 2: Convert to fraction form
    123,340.56/170,213.07 = 69,630.54/x
  3. Step 3: Cross multiply
    123,340.56x = 170,213.07 × 69,630.54
  4. Step 4: Simplify right side
    123,340.56x = 11,852,027,979.16
  5. Step 5: Solve for x
    x = 11,852,027,979.16/123,340.56
  6. Step 6: Final answer
    x = 96,091.89

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1.5x scale

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.