Home / 147,874.32-203,990.76-100,110.96

Finding the Fourth Proportional to 147,874.32, 203,990.76 and 100,110.96

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Solution

The fourth proportional to 147,874.32, 203,990.76 and 100,110.96 is: 138,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,874.32 : 203,990.76 = 100,110.96 : x
  2. Step 2: Convert to fraction form
    147,874.32/203,990.76 = 100,110.96/x
  3. Step 3: Cross multiply
    147,874.32x = 203,990.76 × 100,110.96
  4. Step 4: Simplify right side
    147,874.32x = 20,421,710,814.73
  5. Step 5: Solve for x
    x = 20,421,710,814.73/147,874.32
  6. Step 6: Final answer
    x = 138,101.81

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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.