Home / 120,957.18-166,931-67,247.19

Finding the Fourth Proportional to 120,957.18, 166,931 and 67,247.19

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Solution

The fourth proportional to 120,957.18, 166,931 and 67,247.19 is: 92,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,957.18 : 166,931 = 67,247.19 : x
  2. Step 2: Convert to fraction form
    120,957.18/166,931 = 67,247.19/x
  3. Step 3: Cross multiply
    120,957.18x = 166,931 × 67,247.19
  4. Step 4: Simplify right side
    120,957.18x = 11,225,640,673.89
  5. Step 5: Solve for x
    x = 11,225,640,673.89/120,957.18
  6. Step 6: Final answer
    x = 92,806.73

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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.