Home / 120,423.72-166,182.56-66,708.57

Finding the Fourth Proportional to 120,423.72, 166,182.56 and 66,708.57

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Solution

The fourth proportional to 120,423.72, 166,182.56 and 66,708.57 is: 92,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,423.72 : 166,182.56 = 66,708.57 : x
  2. Step 2: Convert to fraction form
    120,423.72/166,182.56 = 66,708.57/x
  3. Step 3: Cross multiply
    120,423.72x = 166,182.56 × 66,708.57
  4. Step 4: Simplify right side
    120,423.72x = 11,085,800,853.15
  5. Step 5: Solve for x
    x = 11,085,800,853.15/120,423.72
  6. Step 6: Final answer
    x = 92,056.62

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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.