Home / 123,750.12-170,775.26-67,161.50

Finding the Fourth Proportional to 123,750.12, 170,775.26 and 67,161.50

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Solution

The fourth proportional to 123,750.12, 170,775.26 and 67,161.50 is: 92,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,750.12 : 170,775.26 = 67,161.50 : x
  2. Step 2: Convert to fraction form
    123,750.12/170,775.26 = 67,161.50/x
  3. Step 3: Cross multiply
    123,750.12x = 170,775.26 × 67,161.50
  4. Step 4: Simplify right side
    123,750.12x = 11,469,521,434.81
  5. Step 5: Solve for x
    x = 11,469,521,434.81/123,750.12
  6. Step 6: Final answer
    x = 92,682.91

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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.