Home / 123,245.55-170,077.89-66,656.93

Finding the Fourth Proportional to 123,245.55, 170,077.89 and 66,656.93

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Solution

The fourth proportional to 123,245.55, 170,077.89 and 66,656.93 is: 91,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,245.55 : 170,077.89 = 66,656.93 : x
  2. Step 2: Convert to fraction form
    123,245.55/170,077.89 = 66,656.93/x
  3. Step 3: Cross multiply
    123,245.55x = 170,077.89 × 66,656.93
  4. Step 4: Simplify right side
    123,245.55x = 11,336,869,407.85
  5. Step 5: Solve for x
    x = 11,336,869,407.85/123,245.55
  6. Step 6: Final answer
    x = 91,986.03

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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.