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Finding the Fourth Proportional to 123,730.84, 170,751.84 and 67,142.24

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Solution

The fourth proportional to 123,730.84, 170,751.84 and 67,142.24 is: 92,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,730.84 : 170,751.84 = 67,142.24 : x
  2. Step 2: Convert to fraction form
    123,730.84/170,751.84 = 67,142.24/x
  3. Step 3: Cross multiply
    123,730.84x = 170,751.84 × 67,142.24
  4. Step 4: Simplify right side
    123,730.84x = 11,464,661,021.72
  5. Step 5: Solve for x
    x = 11,464,661,021.72/123,730.84
  6. Step 6: Final answer
    x = 92,658.07

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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.