Home / 123,868.55-170,937.65-67,280.33

Finding the Fourth Proportional to 123,868.55, 170,937.65 and 67,280.33

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Solution

The fourth proportional to 123,868.55, 170,937.65 and 67,280.33 is: 92,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,868.55 : 170,937.65 = 67,280.33 : x
  2. Step 2: Convert to fraction form
    123,868.55/170,937.65 = 67,280.33/x
  3. Step 3: Cross multiply
    123,868.55x = 170,937.65 × 67,280.33
  4. Step 4: Simplify right side
    123,868.55x = 11,500,740,310.33
  5. Step 5: Solve for x
    x = 11,500,740,310.33/123,868.55
  6. Step 6: Final answer
    x = 92,846.33

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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.