Home / 163,438.83-225,609.23-102,997.64

Finding the Fourth Proportional to 163,438.83, 225,609.23 and 102,997.64

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Solution

The fourth proportional to 163,438.83, 225,609.23 and 102,997.64 is: 142,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,438.83 : 225,609.23 = 102,997.64 : x
  2. Step 2: Convert to fraction form
    163,438.83/225,609.23 = 102,997.64/x
  3. Step 3: Cross multiply
    163,438.83x = 225,609.23 × 102,997.64
  4. Step 4: Simplify right side
    163,438.83x = 23,237,219,073.73
  5. Step 5: Solve for x
    x = 23,237,219,073.73/163,438.83
  6. Step 6: Final answer
    x = 142,176.86

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1.5x scale

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.