Home / 123,340.50-170,211.15-66,753.09

Finding the Fourth Proportional to 123,340.50, 170,211.15 and 66,753.09

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Solution

The fourth proportional to 123,340.50, 170,211.15 and 66,753.09 is: 92,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.50 : 170,211.15 = 66,753.09 : x
  2. Step 2: Convert to fraction form
    123,340.50/170,211.15 = 66,753.09/x
  3. Step 3: Cross multiply
    123,340.50x = 170,211.15 × 66,753.09
  4. Step 4: Simplify right side
    123,340.50x = 11,362,120,214.95
  5. Step 5: Solve for x
    x = 11,362,120,214.95/123,340.50
  6. Step 6: Final answer
    x = 92,119.95

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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.