Home / 139,440.64-209,143.68-50,690.56

Finding the Fourth Proportional to 139,440.64, 209,143.68 and 50,690.56

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Solution

The fourth proportional to 139,440.64, 209,143.68 and 50,690.56 is: 76,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,440.64 : 209,143.68 = 50,690.56 : x
  2. Step 2: Convert to fraction form
    139,440.64/209,143.68 = 50,690.56/x
  3. Step 3: Cross multiply
    139,440.64x = 209,143.68 × 50,690.56
  4. Step 4: Simplify right side
    139,440.64x = 10,601,610,259.66
  5. Step 5: Solve for x
    x = 10,601,610,259.66/139,440.64
  6. Step 6: Final answer
    x = 76,029.56

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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.