Home / 123,438.30-170,344.95-69,723.42

Finding the Fourth Proportional to 123,438.30, 170,344.95 and 69,723.42

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Solution

The fourth proportional to 123,438.30, 170,344.95 and 69,723.42 is: 96,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,438.30 : 170,344.95 = 69,723.42 : x
  2. Step 2: Convert to fraction form
    123,438.30/170,344.95 = 69,723.42/x
  3. Step 3: Cross multiply
    123,438.30x = 170,344.95 × 69,723.42
  4. Step 4: Simplify right side
    123,438.30x = 11,877,032,493.73
  5. Step 5: Solve for x
    x = 11,877,032,493.73/123,438.30
  6. Step 6: Final answer
    x = 96,218.37

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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.