Home / 123,926.46-171,020.07-67,338.78

Finding the Fourth Proportional to 123,926.46, 171,020.07 and 67,338.78

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Solution

The fourth proportional to 123,926.46, 171,020.07 and 67,338.78 is: 92,928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,926.46 : 171,020.07 = 67,338.78 : x
  2. Step 2: Convert to fraction form
    123,926.46/171,020.07 = 67,338.78/x
  3. Step 3: Cross multiply
    123,926.46x = 171,020.07 × 67,338.78
  4. Step 4: Simplify right side
    123,926.46x = 11,516,282,869.31
  5. Step 5: Solve for x
    x = 11,516,282,869.31/123,926.46
  6. Step 6: Final answer
    x = 92,928.36

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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.