Home / 120,432.26-166,196.40-66,720.62

Finding the Fourth Proportional to 120,432.26, 166,196.40 and 66,720.62

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Solution

The fourth proportional to 120,432.26, 166,196.40 and 66,720.62 is: 92,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,432.26 : 166,196.40 = 66,720.62 : x
  2. Step 2: Convert to fraction form
    120,432.26/166,196.40 = 66,720.62/x
  3. Step 3: Cross multiply
    120,432.26x = 166,196.40 × 66,720.62
  4. Step 4: Simplify right side
    120,432.26x = 11,088,726,849.77
  5. Step 5: Solve for x
    x = 11,088,726,849.77/120,432.26
  6. Step 6: Final answer
    x = 92,074.39

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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.