Home / 139,941.28-209,924.51-45,173.71

Finding the Fourth Proportional to 139,941.28, 209,924.51 and 45,173.71

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Solution

The fourth proportional to 139,941.28, 209,924.51 and 45,173.71 is: 67,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,941.28 : 209,924.51 = 45,173.71 : x
  2. Step 2: Convert to fraction form
    139,941.28/209,924.51 = 45,173.71/x
  3. Step 3: Cross multiply
    139,941.28x = 209,924.51 × 45,173.71
  4. Step 4: Simplify right side
    139,941.28x = 9,483,068,185.95
  5. Step 5: Solve for x
    x = 9,483,068,185.95/139,941.28
  6. Step 6: Final answer
    x = 67,764.62

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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.