Home / 120,404.60-166,162.96-66,688.46

Finding the Fourth Proportional to 120,404.60, 166,162.96 and 66,688.46

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Solution

The fourth proportional to 120,404.60, 166,162.96 and 66,688.46 is: 92,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,404.60 : 166,162.96 = 66,688.46 : x
  2. Step 2: Convert to fraction form
    120,404.60/166,162.96 = 66,688.46/x
  3. Step 3: Cross multiply
    120,404.60x = 166,162.96 × 66,688.46
  4. Step 4: Simplify right side
    120,404.60x = 11,081,152,862.44
  5. Step 5: Solve for x
    x = 11,081,152,862.44/120,404.60
  6. Step 6: Final answer
    x = 92,032.64

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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.