Home / 128,844.93-193,267.38-75,617.90

Finding the Fourth Proportional to 128,844.93, 193,267.38 and 75,617.90

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Solution

The fourth proportional to 128,844.93, 193,267.38 and 75,617.90 is: 113,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,844.93 : 193,267.38 = 75,617.90 : x
  2. Step 2: Convert to fraction form
    128,844.93/193,267.38 = 75,617.90/x
  3. Step 3: Cross multiply
    128,844.93x = 193,267.38 × 75,617.90
  4. Step 4: Simplify right side
    128,844.93x = 14,614,473,414.10
  5. Step 5: Solve for x
    x = 14,614,473,414.10/128,844.93
  6. Step 6: Final answer
    x = 113,426.84

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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.