Home / 139,612.41-209,443.05-39,770.19

Finding the Fourth Proportional to 139,612.41, 209,443.05 and 39,770.19

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Solution

The fourth proportional to 139,612.41, 209,443.05 and 39,770.19 is: 59,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,612.41 : 209,443.05 = 39,770.19 : x
  2. Step 2: Convert to fraction form
    139,612.41/209,443.05 = 39,770.19/x
  3. Step 3: Cross multiply
    139,612.41x = 209,443.05 × 39,770.19
  4. Step 4: Simplify right side
    139,612.41x = 8,329,589,892.68
  5. Step 5: Solve for x
    x = 8,329,589,892.68/139,612.41
  6. Step 6: Final answer
    x = 59,662.25

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1.5x scale

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.