Home / 109,438.76-164,078.39-73,811.62

Finding the Fourth Proportional to 109,438.76, 164,078.39 and 73,811.62

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Solution

The fourth proportional to 109,438.76, 164,078.39 and 73,811.62 is: 110,663.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,438.76 : 164,078.39 = 73,811.62 : x
  2. Step 2: Convert to fraction form
    109,438.76/164,078.39 = 73,811.62/x
  3. Step 3: Cross multiply
    109,438.76x = 164,078.39 × 73,811.62
  4. Step 4: Simplify right side
    109,438.76x = 12,110,892,162.52
  5. Step 5: Solve for x
    x = 12,110,892,162.52/109,438.76
  6. Step 6: Final answer
    x = 110,663.64

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1.5x scale

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.