Home / 120,620.08-166,346.76-75,302.26

Finding the Fourth Proportional to 120,620.08, 166,346.76 and 75,302.26

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Solution

The fourth proportional to 120,620.08, 166,346.76 and 75,302.26 is: 103,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,620.08 : 166,346.76 = 75,302.26 : x
  2. Step 2: Convert to fraction form
    120,620.08/166,346.76 = 75,302.26/x
  3. Step 3: Cross multiply
    120,620.08x = 166,346.76 × 75,302.26
  4. Step 4: Simplify right side
    120,620.08x = 12,526,286,971.68
  5. Step 5: Solve for x
    x = 12,526,286,971.68/120,620.08
  6. Step 6: Final answer
    x = 103,849.10

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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.