Home / 109,929.30-164,893.95-74,499.90

Finding the Fourth Proportional to 109,929.30, 164,893.95 and 74,499.90

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Solution

The fourth proportional to 109,929.30, 164,893.95 and 74,499.90 is: 111,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,929.30 : 164,893.95 = 74,499.90 : x
  2. Step 2: Convert to fraction form
    109,929.30/164,893.95 = 74,499.90/x
  3. Step 3: Cross multiply
    109,929.30x = 164,893.95 × 74,499.90
  4. Step 4: Simplify right side
    109,929.30x = 12,284,582,785.61
  5. Step 5: Solve for x
    x = 12,284,582,785.61/109,929.30
  6. Step 6: Final answer
    x = 111,749.85

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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.