Home / 235,212.96-324,621.71-139,720.04

Finding the Fourth Proportional to 235,212.96, 324,621.71 and 139,720.04

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Solution

The fourth proportional to 235,212.96, 324,621.71 and 139,720.04 is: 192,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,212.96 : 324,621.71 = 139,720.04 : x
  2. Step 2: Convert to fraction form
    235,212.96/324,621.71 = 139,720.04/x
  3. Step 3: Cross multiply
    235,212.96x = 324,621.71 × 139,720.04
  4. Step 4: Simplify right side
    235,212.96x = 45,356,155,984.36
  5. Step 5: Solve for x
    x = 45,356,155,984.36/235,212.96
  6. Step 6: Final answer
    x = 192,830.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.