Home / 139,979.63-209,926.38-40,113.05

Finding the Fourth Proportional to 139,979.63, 209,926.38 and 40,113.05

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Solution

The fourth proportional to 139,979.63, 209,926.38 and 40,113.05 is: 60,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,979.63 : 209,926.38 = 40,113.05 : x
  2. Step 2: Convert to fraction form
    139,979.63/209,926.38 = 40,113.05/x
  3. Step 3: Cross multiply
    139,979.63x = 209,926.38 × 40,113.05
  4. Step 4: Simplify right side
    139,979.63x = 8,420,787,377.26
  5. Step 5: Solve for x
    x = 8,420,787,377.26/139,979.63
  6. Step 6: Final answer
    x = 60,157.23

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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.