Home / 139,458.08-209,069.58-60,512.96

Finding the Fourth Proportional to 139,458.08, 209,069.58 and 60,512.96

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Solution

The fourth proportional to 139,458.08, 209,069.58 and 60,512.96 is: 90,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,458.08 : 209,069.58 = 60,512.96 : x
  2. Step 2: Convert to fraction form
    139,458.08/209,069.58 = 60,512.96/x
  3. Step 3: Cross multiply
    139,458.08x = 209,069.58 × 60,512.96
  4. Step 4: Simplify right side
    139,458.08x = 12,651,419,131.76
  5. Step 5: Solve for x
    x = 12,651,419,131.76/139,458.08
  6. Step 6: Final answer
    x = 90,718.44

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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.