Home / 123,443.20-170,349.60-66,854.08

Finding the Fourth Proportional to 123,443.20, 170,349.60 and 66,854.08

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Solution

The fourth proportional to 123,443.20, 170,349.60 and 66,854.08 is: 92,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,443.20 : 170,349.60 = 66,854.08 : x
  2. Step 2: Convert to fraction form
    123,443.20/170,349.60 = 66,854.08/x
  3. Step 3: Cross multiply
    123,443.20x = 170,349.60 × 66,854.08
  4. Step 4: Simplify right side
    123,443.20x = 11,388,565,786.37
  5. Step 5: Solve for x
    x = 11,388,565,786.37/123,443.20
  6. Step 6: Final answer
    x = 92,257.54

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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.