Home / 139,809.28-209,716.36-46,317.48

Finding the Fourth Proportional to 139,809.28, 209,716.36 and 46,317.48

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Solution

The fourth proportional to 139,809.28, 209,716.36 and 46,317.48 is: 69,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,809.28 : 209,716.36 = 46,317.48 : x
  2. Step 2: Convert to fraction form
    139,809.28/209,716.36 = 46,317.48/x
  3. Step 3: Cross multiply
    139,809.28x = 209,716.36 × 46,317.48
  4. Step 4: Simplify right side
    139,809.28x = 9,713,533,309.97
  5. Step 5: Solve for x
    x = 9,713,533,309.97/139,809.28
  6. Step 6: Final answer
    x = 69,477.03

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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.