Home / 123,651.20-170,664.20-69,938.48

Finding the Fourth Proportional to 123,651.20, 170,664.20 and 69,938.48

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Solution

The fourth proportional to 123,651.20, 170,664.20 and 69,938.48 is: 96,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,651.20 : 170,664.20 = 69,938.48 : x
  2. Step 2: Convert to fraction form
    123,651.20/170,664.20 = 69,938.48/x
  3. Step 3: Cross multiply
    123,651.20x = 170,664.20 × 69,938.48
  4. Step 4: Simplify right side
    123,651.20x = 11,935,993,535.40
  5. Step 5: Solve for x
    x = 11,935,993,535.40/123,651.20
  6. Step 6: Final answer
    x = 96,529.54

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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.