Home / 123,227.40-170,054.34-66,639.24

Finding the Fourth Proportional to 123,227.40, 170,054.34 and 66,639.24

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Solution

The fourth proportional to 123,227.40, 170,054.34 and 66,639.24 is: 91,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,227.40 : 170,054.34 = 66,639.24 : x
  2. Step 2: Convert to fraction form
    123,227.40/170,054.34 = 66,639.24/x
  3. Step 3: Cross multiply
    123,227.40x = 170,054.34 × 66,639.24
  4. Step 4: Simplify right side
    123,227.40x = 11,332,291,976.30
  5. Step 5: Solve for x
    x = 11,332,291,976.30/123,227.40
  6. Step 6: Final answer
    x = 91,962.44

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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.