Home / 123,403.40-170,296.76-66,814.84

Finding the Fourth Proportional to 123,403.40, 170,296.76 and 66,814.84

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Solution

The fourth proportional to 123,403.40, 170,296.76 and 66,814.84 is: 92,204.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,403.40 : 170,296.76 = 66,814.84 : x
  2. Step 2: Convert to fraction form
    123,403.40/170,296.76 = 66,814.84/x
  3. Step 3: Cross multiply
    123,403.40x = 170,296.76 × 66,814.84
  4. Step 4: Simplify right side
    123,403.40x = 11,378,350,771.92
  5. Step 5: Solve for x
    x = 11,378,350,771.92/123,403.40
  6. Step 6: Final answer
    x = 92,204.52

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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.