Home / 120,626.26-166,465.29-66,915.70

Finding the Fourth Proportional to 120,626.26, 166,465.29 and 66,915.70

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Solution

The fourth proportional to 120,626.26, 166,465.29 and 66,915.70 is: 92,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,626.26 : 166,465.29 = 66,915.70 : x
  2. Step 2: Convert to fraction form
    120,626.26/166,465.29 = 66,915.70/x
  3. Step 3: Cross multiply
    120,626.26x = 166,465.29 × 66,915.70
  4. Step 4: Simplify right side
    120,626.26x = 11,139,141,406.05
  5. Step 5: Solve for x
    x = 11,139,141,406.05/120,626.26
  6. Step 6: Final answer
    x = 92,344.25

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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.