Home / 120,054.15-179,956.08-45,122.67

Finding the Fourth Proportional to 120,054.15, 179,956.08 and 45,122.67

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Solution

The fourth proportional to 120,054.15, 179,956.08 and 45,122.67 is: 67,636.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,054.15 : 179,956.08 = 45,122.67 : x
  2. Step 2: Convert to fraction form
    120,054.15/179,956.08 = 45,122.67/x
  3. Step 3: Cross multiply
    120,054.15x = 179,956.08 × 45,122.67
  4. Step 4: Simplify right side
    120,054.15x = 8,120,098,812.33
  5. Step 5: Solve for x
    x = 8,120,098,812.33/120,054.15
  6. Step 6: Final answer
    x = 67,636.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.