Home / 139,531.30-209,170.36-50,722.08

Finding the Fourth Proportional to 139,531.30, 209,170.36 and 50,722.08

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Solution

The fourth proportional to 139,531.30, 209,170.36 and 50,722.08 is: 76,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,531.30 : 209,170.36 = 50,722.08 : x
  2. Step 2: Convert to fraction form
    139,531.30/209,170.36 = 50,722.08/x
  3. Step 3: Cross multiply
    139,531.30x = 209,170.36 × 50,722.08
  4. Step 4: Simplify right side
    139,531.30x = 10,609,555,733.55
  5. Step 5: Solve for x
    x = 10,609,555,733.55/139,531.30
  6. Step 6: Final answer
    x = 76,037.10

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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.