Home / 123,327.80-170,192.88-66,739.17

Finding the Fourth Proportional to 123,327.80, 170,192.88 and 66,739.17

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Solution

The fourth proportional to 123,327.80, 170,192.88 and 66,739.17 is: 92,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,327.80 : 170,192.88 = 66,739.17 : x
  2. Step 2: Convert to fraction form
    123,327.80/170,192.88 = 66,739.17/x
  3. Step 3: Cross multiply
    123,327.80x = 170,192.88 × 66,739.17
  4. Step 4: Simplify right side
    123,327.80x = 11,358,531,551.11
  5. Step 5: Solve for x
    x = 11,358,531,551.11/123,327.80
  6. Step 6: Final answer
    x = 92,100.33

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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.