Home / 123,026.69-169,776.84-66,438.07

Finding the Fourth Proportional to 123,026.69, 169,776.84 and 66,438.07

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Solution

The fourth proportional to 123,026.69, 169,776.84 and 66,438.07 is: 91,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,026.69 : 169,776.84 = 66,438.07 : x
  2. Step 2: Convert to fraction form
    123,026.69/169,776.84 = 66,438.07/x
  3. Step 3: Cross multiply
    123,026.69x = 169,776.84 × 66,438.07
  4. Step 4: Simplify right side
    123,026.69x = 11,279,645,405.00
  5. Step 5: Solve for x
    x = 11,279,645,405.00/123,026.69
  6. Step 6: Final answer
    x = 91,684.54

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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.