Home / 147,818.96-203,990.11-79,835.91

Finding the Fourth Proportional to 147,818.96, 203,990.11 and 79,835.91

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Solution

The fourth proportional to 147,818.96, 203,990.11 and 79,835.91 is: 110,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,818.96 : 203,990.11 = 79,835.91 : x
  2. Step 2: Convert to fraction form
    147,818.96/203,990.11 = 79,835.91/x
  3. Step 3: Cross multiply
    147,818.96x = 203,990.11 × 79,835.91
  4. Step 4: Simplify right side
    147,818.96x = 16,285,736,062.85
  5. Step 5: Solve for x
    x = 16,285,736,062.85/147,818.96
  6. Step 6: Final answer
    x = 110,173.53

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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.