Home / 109,666.37-164,565.18-100,743.41

Finding the Fourth Proportional to 109,666.37, 164,565.18 and 100,743.41

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Solution

The fourth proportional to 109,666.37, 164,565.18 and 100,743.41 is: 151,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,666.37 : 164,565.18 = 100,743.41 : x
  2. Step 2: Convert to fraction form
    109,666.37/164,565.18 = 100,743.41/x
  3. Step 3: Cross multiply
    109,666.37x = 164,565.18 × 100,743.41
  4. Step 4: Simplify right side
    109,666.37x = 16,578,857,811.88
  5. Step 5: Solve for x
    x = 16,578,857,811.88/109,666.37
  6. Step 6: Final answer
    x = 151,175.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.