Home / 123,840.12-170,901.50-67,251.50

Finding the Fourth Proportional to 123,840.12, 170,901.50 and 67,251.50

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Solution

The fourth proportional to 123,840.12, 170,901.50 and 67,251.50 is: 92,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,840.12 : 170,901.50 = 67,251.50 : x
  2. Step 2: Convert to fraction form
    123,840.12/170,901.50 = 67,251.50/x
  3. Step 3: Cross multiply
    123,840.12x = 170,901.50 × 67,251.50
  4. Step 4: Simplify right side
    123,840.12x = 11,493,382,227.25
  5. Step 5: Solve for x
    x = 11,493,382,227.25/123,840.12
  6. Step 6: Final answer
    x = 92,808.23

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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.