Home / 139,019.28-208,626.16-96,999.68

Finding the Fourth Proportional to 139,019.28, 208,626.16 and 96,999.68

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Solution

The fourth proportional to 139,019.28, 208,626.16 and 96,999.68 is: 145,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,019.28 : 208,626.16 = 96,999.68 : x
  2. Step 2: Convert to fraction form
    139,019.28/208,626.16 = 96,999.68/x
  3. Step 3: Cross multiply
    139,019.28x = 208,626.16 × 96,999.68
  4. Step 4: Simplify right side
    139,019.28x = 20,236,670,759.63
  5. Step 5: Solve for x
    x = 20,236,670,759.63/139,019.28
  6. Step 6: Final answer
    x = 145,567.37

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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.