Home / 123,349.92-170,226-75,629.58

Finding the Fourth Proportional to 123,349.92, 170,226 and 75,629.58

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Solution

The fourth proportional to 123,349.92, 170,226 and 75,629.58 is: 104,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,349.92 : 170,226 = 75,629.58 : x
  2. Step 2: Convert to fraction form
    123,349.92/170,226 = 75,629.58/x
  3. Step 3: Cross multiply
    123,349.92x = 170,226 × 75,629.58
  4. Step 4: Simplify right side
    123,349.92x = 12,874,120,885.08
  5. Step 5: Solve for x
    x = 12,874,120,885.08/123,349.92
  6. Step 6: Final answer
    x = 104,370.73

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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.