Home / 120,057.15-179,960.58-45,125.67

Finding the Fourth Proportional to 120,057.15, 179,960.58 and 45,125.67

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Solution

The fourth proportional to 120,057.15, 179,960.58 and 45,125.67 is: 67,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,057.15 : 179,960.58 = 45,125.67 : x
  2. Step 2: Convert to fraction form
    120,057.15/179,960.58 = 45,125.67/x
  3. Step 3: Cross multiply
    120,057.15x = 179,960.58 × 45,125.67
  4. Step 4: Simplify right side
    120,057.15x = 8,120,841,746.09
  5. Step 5: Solve for x
    x = 8,120,841,746.09/120,057.15
  6. Step 6: Final answer
    x = 67,641.47

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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.