Home / 122,116.11-168,520.23-74,369.46

Finding the Fourth Proportional to 122,116.11, 168,520.23 and 74,369.46

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Solution

The fourth proportional to 122,116.11, 168,520.23 and 74,369.46 is: 102,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.11 : 168,520.23 = 74,369.46 : x
  2. Step 2: Convert to fraction form
    122,116.11/168,520.23 = 74,369.46/x
  3. Step 3: Cross multiply
    122,116.11x = 168,520.23 × 74,369.46
  4. Step 4: Simplify right side
    122,116.11x = 12,532,758,504.18
  5. Step 5: Solve for x
    x = 12,532,758,504.18/122,116.11
  6. Step 6: Final answer
    x = 102,629.85

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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.