Home / 128,934.99-193,399.38-75,962.93

Finding the Fourth Proportional to 128,934.99, 193,399.38 and 75,962.93

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Solution

The fourth proportional to 128,934.99, 193,399.38 and 75,962.93 is: 113,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,934.99 : 193,399.38 = 75,962.93 : x
  2. Step 2: Convert to fraction form
    128,934.99/193,399.38 = 75,962.93/x
  3. Step 3: Cross multiply
    128,934.99x = 193,399.38 × 75,962.93
  4. Step 4: Simplify right side
    128,934.99x = 14,691,182,597.99
  5. Step 5: Solve for x
    x = 14,691,182,597.99/128,934.99
  6. Step 6: Final answer
    x = 113,942.56

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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.