Home / 123,520.80-170,458.56-66,932.16

Finding the Fourth Proportional to 123,520.80, 170,458.56 and 66,932.16

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Solution

The fourth proportional to 123,520.80, 170,458.56 and 66,932.16 is: 92,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,520.80 : 170,458.56 = 66,932.16 : x
  2. Step 2: Convert to fraction form
    123,520.80/170,458.56 = 66,932.16/x
  3. Step 3: Cross multiply
    123,520.80x = 170,458.56 × 66,932.16
  4. Step 4: Simplify right side
    123,520.80x = 11,409,159,611.29
  5. Step 5: Solve for x
    x = 11,409,159,611.29/123,520.80
  6. Step 6: Final answer
    x = 92,366.30

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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.