Home / 139,056.88-208,308.94-67,771.64

Finding the Fourth Proportional to 139,056.88, 208,308.94 and 67,771.64

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Solution

The fourth proportional to 139,056.88, 208,308.94 and 67,771.64 is: 101,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,056.88 : 208,308.94 = 67,771.64 : x
  2. Step 2: Convert to fraction form
    139,056.88/208,308.94 = 67,771.64/x
  3. Step 3: Cross multiply
    139,056.88x = 208,308.94 × 67,771.64
  4. Step 4: Simplify right side
    139,056.88x = 14,117,437,860.67
  5. Step 5: Solve for x
    x = 14,117,437,860.67/139,056.88
  6. Step 6: Final answer
    x = 101,522.76

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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.