Home / 203,536.86-280,898.10-112,921.98

Finding the Fourth Proportional to 203,536.86, 280,898.10 and 112,921.98

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Solution

The fourth proportional to 203,536.86, 280,898.10 and 112,921.98 is: 155,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,536.86 : 280,898.10 = 112,921.98 : x
  2. Step 2: Convert to fraction form
    203,536.86/280,898.10 = 112,921.98/x
  3. Step 3: Cross multiply
    203,536.86x = 280,898.10 × 112,921.98
  4. Step 4: Simplify right side
    203,536.86x = 31,719,569,630.24
  5. Step 5: Solve for x
    x = 31,719,569,630.24/203,536.86
  6. Step 6: Final answer
    x = 155,841.89

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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.