Home / 123,633.08-170,612.16-67,043.78

Finding the Fourth Proportional to 123,633.08, 170,612.16 and 67,043.78

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Solution

The fourth proportional to 123,633.08, 170,612.16 and 67,043.78 is: 92,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,633.08 : 170,612.16 = 67,043.78 : x
  2. Step 2: Convert to fraction form
    123,633.08/170,612.16 = 67,043.78/x
  3. Step 3: Cross multiply
    123,633.08x = 170,612.16 × 67,043.78
  4. Step 4: Simplify right side
    123,633.08x = 11,438,484,120.36
  5. Step 5: Solve for x
    x = 11,438,484,120.36/123,633.08
  6. Step 6: Final answer
    x = 92,519.61

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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.