Home / 120,636.92-166,421.04-88,320.62

Finding the Fourth Proportional to 120,636.92, 166,421.04 and 88,320.62

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Solution

The fourth proportional to 120,636.92, 166,421.04 and 88,320.62 is: 121,840.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,636.92 : 166,421.04 = 88,320.62 : x
  2. Step 2: Convert to fraction form
    120,636.92/166,421.04 = 88,320.62/x
  3. Step 3: Cross multiply
    120,636.92x = 166,421.04 × 88,320.62
  4. Step 4: Simplify right side
    120,636.92x = 14,698,409,433.84
  5. Step 5: Solve for x
    x = 14,698,409,433.84/120,636.92
  6. Step 6: Final answer
    x = 121,840.06

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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.