Home / 203,619.30-280,981.26-112,975.02

Finding the Fourth Proportional to 203,619.30, 280,981.26 and 112,975.02

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Solution

The fourth proportional to 203,619.30, 280,981.26 and 112,975.02 is: 155,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,619.30 : 280,981.26 = 112,975.02 : x
  2. Step 2: Convert to fraction form
    203,619.30/280,981.26 = 112,975.02/x
  3. Step 3: Cross multiply
    203,619.30x = 280,981.26 × 112,975.02
  4. Step 4: Simplify right side
    203,619.30x = 31,743,863,468.13
  5. Step 5: Solve for x
    x = 31,743,863,468.13/203,619.30
  6. Step 6: Final answer
    x = 155,898.11

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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.