Home / 139,953.02-209,909.88-40,121.73

Finding the Fourth Proportional to 139,953.02, 209,909.88 and 40,121.73

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Solution

The fourth proportional to 139,953.02, 209,909.88 and 40,121.73 is: 60,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,953.02 : 209,909.88 = 40,121.73 : x
  2. Step 2: Convert to fraction form
    139,953.02/209,909.88 = 40,121.73/x
  3. Step 3: Cross multiply
    139,953.02x = 209,909.88 × 40,121.73
  4. Step 4: Simplify right side
    139,953.02x = 8,421,947,529.69
  5. Step 5: Solve for x
    x = 8,421,947,529.69/139,953.02
  6. Step 6: Final answer
    x = 60,176.96

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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.