Home / 203,462.08-280,784.61-112,812.75

Finding the Fourth Proportional to 203,462.08, 280,784.61 and 112,812.75

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Solution

The fourth proportional to 203,462.08, 280,784.61 and 112,812.75 is: 155,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,462.08 : 280,784.61 = 112,812.75 : x
  2. Step 2: Convert to fraction form
    203,462.08/280,784.61 = 112,812.75/x
  3. Step 3: Cross multiply
    203,462.08x = 280,784.61 × 112,812.75
  4. Step 4: Simplify right side
    203,462.08x = 31,676,084,011.78
  5. Step 5: Solve for x
    x = 31,676,084,011.78/203,462.08
  6. Step 6: Final answer
    x = 155,685.44

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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.