Home / 203,342.11-280,612.14-112,703.92

Finding the Fourth Proportional to 203,342.11, 280,612.14 and 112,703.92

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Solution

The fourth proportional to 203,342.11, 280,612.14 and 112,703.92 is: 155,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,342.11 : 280,612.14 = 112,703.92 : x
  2. Step 2: Convert to fraction form
    203,342.11/280,612.14 = 112,703.92/x
  3. Step 3: Cross multiply
    203,342.11x = 280,612.14 × 112,703.92
  4. Step 4: Simplify right side
    203,342.11x = 31,626,086,632.21
  5. Step 5: Solve for x
    x = 31,626,086,632.21/203,342.11
  6. Step 6: Final answer
    x = 155,531.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.