Home / 139,834.88-209,636.20-55,543.04

Finding the Fourth Proportional to 139,834.88, 209,636.20 and 55,543.04

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Solution

The fourth proportional to 139,834.88, 209,636.20 and 55,543.04 is: 83,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,834.88 : 209,636.20 = 55,543.04 : x
  2. Step 2: Convert to fraction form
    139,834.88/209,636.20 = 55,543.04/x
  3. Step 3: Cross multiply
    139,834.88x = 209,636.20 × 55,543.04
  4. Step 4: Simplify right side
    139,834.88x = 11,643,831,842.05
  5. Step 5: Solve for x
    x = 11,643,831,842.05/139,834.88
  6. Step 6: Final answer
    x = 83,268.44

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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.