Home / 203,486.04-280,802.94-112,845.72

Finding the Fourth Proportional to 203,486.04, 280,802.94 and 112,845.72

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Solution

The fourth proportional to 203,486.04, 280,802.94 and 112,845.72 is: 155,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,486.04 : 280,802.94 = 112,845.72 : x
  2. Step 2: Convert to fraction form
    203,486.04/280,802.94 = 112,845.72/x
  3. Step 3: Cross multiply
    203,486.04x = 280,802.94 × 112,845.72
  4. Step 4: Simplify right side
    203,486.04x = 31,687,409,942.42
  5. Step 5: Solve for x
    x = 31,687,409,942.42/203,486.04
  6. Step 6: Final answer
    x = 155,722.77

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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.