Home / 139,941.99-209,913.93-51,158.97

Finding the Fourth Proportional to 139,941.99, 209,913.93 and 51,158.97

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Solution

The fourth proportional to 139,941.99, 209,913.93 and 51,158.97 is: 76,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,941.99 : 209,913.93 = 51,158.97 : x
  2. Step 2: Convert to fraction form
    139,941.99/209,913.93 = 51,158.97/x
  3. Step 3: Cross multiply
    139,941.99x = 209,913.93 × 51,158.97
  4. Step 4: Simplify right side
    139,941.99x = 10,738,980,447.45
  5. Step 5: Solve for x
    x = 10,738,980,447.45/139,941.99
  6. Step 6: Final answer
    x = 76,738.80

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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.