Home / 128,762.46-193,197.96-49,932.18

Finding the Fourth Proportional to 128,762.46, 193,197.96 and 49,932.18

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Solution

The fourth proportional to 128,762.46, 193,197.96 and 49,932.18 is: 74,919.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,762.46 : 193,197.96 = 49,932.18 : x
  2. Step 2: Convert to fraction form
    128,762.46/193,197.96 = 49,932.18/x
  3. Step 3: Cross multiply
    128,762.46x = 193,197.96 × 49,932.18
  4. Step 4: Simplify right side
    128,762.46x = 9,646,795,314.35
  5. Step 5: Solve for x
    x = 9,646,795,314.35/128,762.46
  6. Step 6: Final answer
    x = 74,919.32

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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.