Home / 123,423.05-170,322.84-66,834.43

Finding the Fourth Proportional to 123,423.05, 170,322.84 and 66,834.43

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Solution

The fourth proportional to 123,423.05, 170,322.84 and 66,834.43 is: 92,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,423.05 : 170,322.84 = 66,834.43 : x
  2. Step 2: Convert to fraction form
    123,423.05/170,322.84 = 66,834.43/x
  3. Step 3: Cross multiply
    123,423.05x = 170,322.84 × 66,834.43
  4. Step 4: Simplify right side
    123,423.05x = 11,383,429,647.10
  5. Step 5: Solve for x
    x = 11,383,429,647.10/123,423.05
  6. Step 6: Final answer
    x = 92,230.98

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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.