Home / 157,942.46-217,957.20-89,031.44

Finding the Fourth Proportional to 157,942.46, 217,957.20 and 89,031.44

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Solution

The fourth proportional to 157,942.46, 217,957.20 and 89,031.44 is: 122,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,942.46 : 217,957.20 = 89,031.44 : x
  2. Step 2: Convert to fraction form
    157,942.46/217,957.20 = 89,031.44/x
  3. Step 3: Cross multiply
    157,942.46x = 217,957.20 × 89,031.44
  4. Step 4: Simplify right side
    157,942.46x = 19,405,043,374.37
  5. Step 5: Solve for x
    x = 19,405,043,374.37/157,942.46
  6. Step 6: Final answer
    x = 122,861.47

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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.