Home / 109,620.48-164,275.20-80,106.24

Finding the Fourth Proportional to 109,620.48, 164,275.20 and 80,106.24

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Solution

The fourth proportional to 109,620.48, 164,275.20 and 80,106.24 is: 120,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,620.48 : 164,275.20 = 80,106.24 : x
  2. Step 2: Convert to fraction form
    109,620.48/164,275.20 = 80,106.24/x
  3. Step 3: Cross multiply
    109,620.48x = 164,275.20 × 80,106.24
  4. Step 4: Simplify right side
    109,620.48x = 13,159,468,597.25
  5. Step 5: Solve for x
    x = 13,159,468,597.25/109,620.48
  6. Step 6: Final answer
    x = 120,045.71

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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.